diff --git a/sound/pci/ac97/ac97_codec.c b/sound/pci/ac97/ac97_codec.c
index 171559c..d0023e9 100644
--- a/sound/pci/ac97/ac97_codec.c
+++ b/sound/pci/ac97/ac97_codec.c
@@ -1890,8 +1890,8 @@
 		.dev_free =	snd_ac97_bus_dev_free,
 	};
 
-	snd_assert(card != NULL, return -EINVAL);
-	snd_assert(rbus != NULL, return -EINVAL);
+	if (snd_BUG_ON(!card))
+		return -EINVAL;
 	bus = kzalloc(sizeof(*bus), GFP_KERNEL);
 	if (bus == NULL)
 		return -ENOMEM;
@@ -1906,7 +1906,8 @@
 		snd_ac97_bus_free(bus);
 		return err;
 	}
-	*rbus = bus;
+	if (rbus)
+		*rbus = bus;
 	return 0;
 }
 
@@ -1991,10 +1992,14 @@
 		.dev_disconnect =	snd_ac97_dev_disconnect,
 	};
 
-	snd_assert(rac97 != NULL, return -EINVAL);
-	*rac97 = NULL;
-	snd_assert(bus != NULL && template != NULL, return -EINVAL);
-	snd_assert(template->num < 4 && bus->codec[template->num] == NULL, return -EINVAL);
+	if (rac97)
+		*rac97 = NULL;
+	if (snd_BUG_ON(!bus || !template))
+		return -EINVAL;
+	if (snd_BUG_ON(template->num >= 4))
+		return -EINVAL;
+	if (bus->codec[template->num])
+		return -EBUSY;
 
 	card = bus->card;
 	ac97 = kzalloc(sizeof(*ac97), GFP_KERNEL);
diff --git a/sound/pci/ad1889.c b/sound/pci/ad1889.c
index 39ec55b..92f3a97 100644
--- a/sound/pci/ad1889.c
+++ b/sound/pci/ad1889.c
@@ -549,7 +549,8 @@
 	ptr = ad1889_readl(chip, AD_DMA_WAVCA);
 	ptr -= chip->wave.addr;
 	
-	snd_assert((ptr >= 0) && (ptr < chip->wave.size), return 0);
+	if (snd_BUG_ON(ptr >= chip->wave.size))
+		return 0;
 	
 	return bytes_to_frames(ss->runtime, ptr);
 }
@@ -567,7 +568,8 @@
 	ptr = ad1889_readl(chip, AD_DMA_ADCCA);
 	ptr -= chip->ramc.addr;
 
-	snd_assert((ptr >= 0) && (ptr < chip->ramc.size), return 0);
+	if (snd_BUG_ON(ptr >= chip->ramc.size))
+		return 0;
 	
 	return bytes_to_frames(ss->runtime, ptr);
 }
diff --git a/sound/pci/ak4531_codec.c b/sound/pci/ak4531_codec.c
index 33d37b1..0f819dd 100644
--- a/sound/pci/ak4531_codec.c
+++ b/sound/pci/ak4531_codec.c
@@ -392,9 +392,10 @@
 		.dev_free =	snd_ak4531_dev_free,
 	};
 
-	snd_assert(rak4531 != NULL, return -EINVAL);
-	*rak4531 = NULL;
-	snd_assert(card != NULL && _ak4531 != NULL, return -EINVAL);
+	if (snd_BUG_ON(!card || !_ak4531))
+		return -EINVAL;
+	if (rak4531)
+		*rak4531 = NULL;
 	ak4531 = kzalloc(sizeof(*ak4531), GFP_KERNEL);
 	if (ak4531 == NULL)
 		return -ENOMEM;
@@ -428,7 +429,8 @@
 #if 0
 	snd_ak4531_dump(ak4531);
 #endif
-	*rak4531 = ak4531;
+	if (rak4531)
+		*rak4531 = ak4531;
 	return 0;
 }
 
diff --git a/sound/pci/atiixp.c b/sound/pci/atiixp.c
index 457228f..ce1eb12 100644
--- a/sound/pci/atiixp.c
+++ b/sound/pci/atiixp.c
@@ -722,7 +722,9 @@
 	struct atiixp_dma *dma = substream->runtime->private_data;
 	int err = 0;
 
-	snd_assert(dma->ops->enable_transfer && dma->ops->flush_dma, return -EINVAL);
+	if (snd_BUG_ON(!dma->ops->enable_transfer ||
+		       !dma->ops->flush_dma))
+		return -EINVAL;
 
 	spin_lock(&chip->reg_lock);
 	switch (cmd) {
@@ -1032,7 +1034,8 @@
 	struct snd_pcm_runtime *runtime = substream->runtime;
 	int err;
 
-	snd_assert(dma->ops && dma->ops->enable_dma, return -EINVAL);
+	if (snd_BUG_ON(!dma->ops || !dma->ops->enable_dma))
+		return -EINVAL;
 
 	if (dma->opened)
 		return -EBUSY;
@@ -1064,7 +1067,8 @@
 {
 	struct atiixp *chip = snd_pcm_substream_chip(substream);
 	/* disable DMA bits */
-	snd_assert(dma->ops && dma->ops->enable_dma, return -EINVAL);
+	if (snd_BUG_ON(!dma->ops || !dma->ops->enable_dma))
+		return -EINVAL;
 	spin_lock_irq(&chip->reg_lock);
 	dma->ops->enable_dma(chip, 0);
 	spin_unlock_irq(&chip->reg_lock);
diff --git a/sound/pci/atiixp_modem.c b/sound/pci/atiixp_modem.c
index d457a32..2f10630 100644
--- a/sound/pci/atiixp_modem.c
+++ b/sound/pci/atiixp_modem.c
@@ -674,7 +674,9 @@
 	struct atiixp_dma *dma = substream->runtime->private_data;
 	int err = 0;
 
-	snd_assert(dma->ops->enable_transfer && dma->ops->flush_dma, return -EINVAL);
+	if (snd_BUG_ON(!dma->ops->enable_transfer ||
+		       !dma->ops->flush_dma))
+		return -EINVAL;
 
 	spin_lock(&chip->reg_lock);
 	switch(cmd) {
@@ -865,7 +867,8 @@
 		.mask = 0,
 	};
 
-	snd_assert(dma->ops && dma->ops->enable_dma, return -EINVAL);
+	if (snd_BUG_ON(!dma->ops || !dma->ops->enable_dma))
+		return -EINVAL;
 
 	if (dma->opened)
 		return -EBUSY;
@@ -895,7 +898,8 @@
 {
 	struct atiixp_modem *chip = snd_pcm_substream_chip(substream);
 	/* disable DMA bits */
-	snd_assert(dma->ops && dma->ops->enable_dma, return -EINVAL);
+	if (snd_BUG_ON(!dma->ops || !dma->ops->enable_dma))
+		return -EINVAL;
 	spin_lock_irq(&chip->reg_lock);
 	dma->ops->enable_dma(chip, 0);
 	spin_unlock_irq(&chip->reg_lock);
diff --git a/sound/pci/azt3328.c b/sound/pci/azt3328.c
index 22f18f3..333007c 100644
--- a/sound/pci/azt3328.c
+++ b/sound/pci/azt3328.c
@@ -816,7 +816,8 @@
 	int err;
 
 	snd_azf3328_dbgcallenter();
-	snd_assert(chip != NULL && chip->card != NULL, return -EINVAL);
+	if (snd_BUG_ON(!chip || !chip->card))
+		return -EINVAL;
 
 	card = chip->card;
 
@@ -1471,7 +1472,8 @@
 	u8 val;
 	unsigned long flags;
 
-	snd_assert(chip, return 0);
+	if (snd_BUG_ON(!chip))
+		return 0;
 
 	spin_lock_irqsave(&chip->reg_lock, flags);
 	val = snd_azf3328_game_inb(chip, IDX_GAME_LEGACY_COMPATIBLE);
diff --git a/sound/pci/ca0106/ca_midi.c b/sound/pci/ca0106/ca_midi.c
index 893ee4f..c788511 100644
--- a/sound/pci/ca0106/ca_midi.c
+++ b/sound/pci/ca0106/ca_midi.c
@@ -125,7 +125,8 @@
 	struct snd_ca_midi *midi = substream->rmidi->private_data;
 	unsigned long flags;
 	
-	snd_assert(midi->dev_id, return -ENXIO);
+	if (snd_BUG_ON(!midi->dev_id))
+		return -ENXIO;
 	spin_lock_irqsave(&midi->open_lock, flags);
 	midi->midi_mode |= CA_MIDI_MODE_INPUT;
 	midi->substream_input = substream;
@@ -144,7 +145,8 @@
 	struct snd_ca_midi *midi = substream->rmidi->private_data;
 	unsigned long flags;
 
-	snd_assert(midi->dev_id, return -ENXIO);
+	if (snd_BUG_ON(!midi->dev_id))
+		return -ENXIO;
 	spin_lock_irqsave(&midi->open_lock, flags);
 	midi->midi_mode |= CA_MIDI_MODE_OUTPUT;
 	midi->substream_output = substream;
@@ -163,7 +165,8 @@
 	struct snd_ca_midi *midi = substream->rmidi->private_data;
 	unsigned long flags;
 
-	snd_assert(midi->dev_id, return -ENXIO);
+	if (snd_BUG_ON(!midi->dev_id))
+		return -ENXIO;
 	spin_lock_irqsave(&midi->open_lock, flags);
 	midi->interrupt_disable(midi,midi->rx_enable);
 	midi->midi_mode &= ~CA_MIDI_MODE_INPUT;
@@ -181,7 +184,9 @@
 {
 	struct snd_ca_midi *midi = substream->rmidi->private_data;
 	unsigned long flags;
-	snd_assert(midi->dev_id, return -ENXIO);
+
+	if (snd_BUG_ON(!midi->dev_id))
+		return -ENXIO;
 	
 	spin_lock_irqsave(&midi->open_lock, flags);
 
@@ -201,7 +206,9 @@
 static void ca_midi_input_trigger(struct snd_rawmidi_substream *substream, int up)
 {
 	struct snd_ca_midi *midi = substream->rmidi->private_data;
-	snd_assert(midi->dev_id, return);
+
+	if (snd_BUG_ON(!midi->dev_id))
+		return;
 
 	if (up) {
 		midi->interrupt_enable(midi,midi->rx_enable);
@@ -215,7 +222,8 @@
 	struct snd_ca_midi *midi = substream->rmidi->private_data;
 	unsigned long flags;
 
-	snd_assert(midi->dev_id, return);
+	if (snd_BUG_ON(!midi->dev_id))
+		return;
 
 	if (up) {
 		int max = 4;
diff --git a/sound/pci/cmipci.c b/sound/pci/cmipci.c
index 9971b5b..1a74ca6 100644
--- a/sound/pci/cmipci.c
+++ b/sound/pci/cmipci.c
@@ -2357,7 +2357,8 @@
 {
 	struct cmipci_switch_args *args;
 	args = (struct cmipci_switch_args *)kcontrol->private_value;
-	snd_assert(args != NULL, return -EINVAL);
+	if (snd_BUG_ON(!args))
+		return -EINVAL;
 	return _snd_cmipci_uswitch_get(kcontrol, ucontrol, args);
 }
 
@@ -2401,7 +2402,8 @@
 {
 	struct cmipci_switch_args *args;
 	args = (struct cmipci_switch_args *)kcontrol->private_value;
-	snd_assert(args != NULL, return -EINVAL);
+	if (snd_BUG_ON(!args))
+		return -EINVAL;
 	return _snd_cmipci_uswitch_put(kcontrol, ucontrol, args);
 }
 
@@ -2662,7 +2664,8 @@
 	unsigned int idx;
 	int err;
 
-	snd_assert(cm != NULL && cm->card != NULL, return -EINVAL);
+	if (snd_BUG_ON(!cm || !cm->card))
+		return -EINVAL;
 
 	card = cm->card;
 
diff --git a/sound/pci/cs4281.c b/sound/pci/cs4281.c
index 7556fd9..ef9308f 100644
--- a/sound/pci/cs4281.c
+++ b/sound/pci/cs4281.c
@@ -766,13 +766,13 @@
 	if (!capture) {
 		if (dma->left_slot == chip->src_left_play_slot) {
 			unsigned int val = snd_cs4281_rate(runtime->rate, NULL);
-			snd_assert(dma->right_slot == chip->src_right_play_slot, );
+			snd_BUG_ON(dma->right_slot != chip->src_right_play_slot);
 			snd_cs4281_pokeBA0(chip, BA0_DACSR, val);
 		}
 	} else {
 		if (dma->left_slot == chip->src_left_rec_slot) {
 			unsigned int val = snd_cs4281_rate(runtime->rate, NULL);
-			snd_assert(dma->right_slot == chip->src_right_rec_slot, );
+			snd_BUG_ON(dma->right_slot != chip->src_right_rec_slot);
 			snd_cs4281_pokeBA0(chip, BA0_ADCSR, val);
 		}
 	}
@@ -1209,7 +1209,8 @@
 {
 	struct cs4281 *chip = gameport_get_port_data(gameport);
 
-	snd_assert(chip, return);
+	if (snd_BUG_ON(!chip))
+		return;
 	snd_cs4281_pokeBA0(chip, BA0_JSPT, 0xff);
 }
 
@@ -1217,7 +1218,8 @@
 {
 	struct cs4281 *chip = gameport_get_port_data(gameport);
 
-	snd_assert(chip, return 0);
+	if (snd_BUG_ON(!chip))
+		return 0;
 	return snd_cs4281_peekBA0(chip, BA0_JSPT);
 }
 
@@ -1228,7 +1230,8 @@
 	struct cs4281 *chip = gameport_get_port_data(gameport);
 	unsigned js1, js2, jst;
 	
-	snd_assert(chip, return 0);
+	if (snd_BUG_ON(!chip))
+		return 0;
 
 	js1 = snd_cs4281_peekBA0(chip, BA0_JSC1);
 	js2 = snd_cs4281_peekBA0(chip, BA0_JSC2);
diff --git a/sound/pci/cs46xx/cs46xx_lib.c b/sound/pci/cs46xx/cs46xx_lib.c
index e214e56..a10ab82 100644
--- a/sound/pci/cs46xx/cs46xx_lib.c
+++ b/sound/pci/cs46xx/cs46xx_lib.c
@@ -90,9 +90,10 @@
 	int count;
 	unsigned short result,tmp;
 	u32 offset = 0;
-	snd_assert ( (codec_index == CS46XX_PRIMARY_CODEC_INDEX) ||
-		     (codec_index == CS46XX_SECONDARY_CODEC_INDEX),
-		     return -EINVAL);
+
+	if (snd_BUG_ON(codec_index != CS46XX_PRIMARY_CODEC_INDEX &&
+		       codec_index != CS46XX_SECONDARY_CODEC_INDEX))
+		return -EINVAL;
 
 	chip->active_ctrl(chip, 1);
 
@@ -212,9 +213,9 @@
 	unsigned short val;
 	int codec_index = ac97->num;
 
-	snd_assert(codec_index == CS46XX_PRIMARY_CODEC_INDEX ||
-		   codec_index == CS46XX_SECONDARY_CODEC_INDEX,
-		   return 0xffff);
+	if (snd_BUG_ON(codec_index != CS46XX_PRIMARY_CODEC_INDEX &&
+		       codec_index != CS46XX_SECONDARY_CODEC_INDEX))
+		return 0xffff;
 
 	val = snd_cs46xx_codec_read(chip, reg, codec_index);
 
@@ -229,9 +230,9 @@
 {
 	int count;
 
-	snd_assert ((codec_index == CS46XX_PRIMARY_CODEC_INDEX) ||
-		    (codec_index == CS46XX_SECONDARY_CODEC_INDEX),
-		    return);
+	if (snd_BUG_ON(codec_index != CS46XX_PRIMARY_CODEC_INDEX &&
+		       codec_index != CS46XX_SECONDARY_CODEC_INDEX))
+		return;
 
 	chip->active_ctrl(chip, 1);
 
@@ -294,9 +295,9 @@
 	struct snd_cs46xx *chip = ac97->private_data;
 	int codec_index = ac97->num;
 
-	snd_assert(codec_index == CS46XX_PRIMARY_CODEC_INDEX ||
-		   codec_index == CS46XX_SECONDARY_CODEC_INDEX,
-		   return);
+	if (snd_BUG_ON(codec_index != CS46XX_PRIMARY_CODEC_INDEX &&
+		       codec_index != CS46XX_SECONDARY_CODEC_INDEX))
+		return;
 
 	snd_cs46xx_codec_write(chip, reg, val, codec_index);
 }
@@ -315,7 +316,8 @@
 	unsigned int bank = offset >> 16;
 	offset = offset & 0xffff;
 
-	snd_assert(!(offset & 3) && !(len & 3), return -EINVAL);
+	if (snd_BUG_ON((offset & 3) || (len & 3)))
+		return -EINVAL;
 	dst = chip->region.idx[bank+1].remap_addr + offset;
 	len /= sizeof(u32);
 
@@ -343,7 +345,8 @@
 	unsigned int bank = offset >> 16;
 	offset = offset & 0xffff;
 
-	snd_assert(!(offset & 3) && !(len & 3), return -EINVAL);
+	if (snd_BUG_ON((offset & 3) || (len & 3)))
+		return -EINVAL;
 	dst = chip->region.idx[bank+1].remap_addr + offset;
 	len /= sizeof(u32);
 
@@ -722,7 +725,9 @@
 	struct snd_cs46xx *chip = snd_pcm_substream_chip(substream);
 	size_t ptr;
 	struct snd_cs46xx_pcm *cpcm = substream->runtime->private_data;
-	snd_assert (cpcm->pcm_channel,return -ENXIO);
+
+	if (snd_BUG_ON(!cpcm->pcm_channel))
+		return -ENXIO;
 
 #ifdef CONFIG_SND_CS46XX_NEW_DSP
 	ptr = snd_cs46xx_peek(chip, (cpcm->pcm_channel->pcm_reader_scb->address + 2) << 2);
@@ -740,7 +745,8 @@
 	struct snd_cs46xx_pcm *cpcm = substream->runtime->private_data;
 
 #ifdef CONFIG_SND_CS46XX_NEW_DSP
-	snd_assert (cpcm->pcm_channel,return -ENXIO);
+	if (snd_BUG_ON(!cpcm->pcm_channel))
+		return -ENXIO;
 	ptr = snd_cs46xx_peek(chip, (cpcm->pcm_channel->pcm_reader_scb->address + 2) << 2);
 #else
 	ptr = snd_cs46xx_peek(chip, BA1_PBA);
@@ -908,7 +914,8 @@
 	cpcm = runtime->private_data;
 
 #ifdef CONFIG_SND_CS46XX_NEW_DSP
-	snd_assert (sample_rate != 0, return -ENXIO);
+	if (snd_BUG_ON(!sample_rate))
+		return -ENXIO;
 
 	mutex_lock(&chip->spos_mutex);
 
@@ -917,7 +924,7 @@
 		return -ENXIO;
 	}
 
-	snd_assert (cpcm->pcm_channel != NULL);
+	snd_BUG_ON(!cpcm->pcm_channel);
 	if (!cpcm->pcm_channel) {
 		mutex_unlock(&chip->spos_mutex);
 		return -ENXIO;
@@ -952,7 +959,7 @@
 		} else if (cpcm->pcm_channel_id == DSP_IEC958_CHANNEL) {
 			substream->ops = &snd_cs46xx_playback_iec958_ops;
 		} else {
-			snd_assert(0);
+			snd_BUG();
 		}
 #else
 		substream->ops = &snd_cs46xx_playback_ops;
@@ -981,7 +988,7 @@
 		} else if (cpcm->pcm_channel_id == DSP_IEC958_CHANNEL) {
 			substream->ops = &snd_cs46xx_playback_indirect_iec958_ops;
 		} else {
-			snd_assert(0);
+			snd_BUG();
 		}
 #else
 		substream->ops = &snd_cs46xx_playback_indirect_ops;
@@ -1029,7 +1036,8 @@
 	cpcm = runtime->private_data;
 
 #ifdef CONFIG_SND_CS46XX_NEW_DSP
-    snd_assert (cpcm->pcm_channel != NULL, return -ENXIO);
+	if (snd_BUG_ON(!cpcm->pcm_channel))
+		return -ENXIO;
 
 	pfie = snd_cs46xx_peek(chip, (cpcm->pcm_channel->pcm_reader_scb->address + 1) << 2 );
 	pfie &= ~0x0000f03f;
@@ -1714,9 +1722,9 @@
 {
 	struct snd_cs46xx *chip = ac97->private_data;
 
-	snd_assert ((ac97 == chip->ac97[CS46XX_PRIMARY_CODEC_INDEX]) ||
-		    (ac97 == chip->ac97[CS46XX_SECONDARY_CODEC_INDEX]),
-		    return);
+	if (snd_BUG_ON(ac97 != chip->ac97[CS46XX_PRIMARY_CODEC_INDEX] &&
+		       ac97 != chip->ac97[CS46XX_SECONDARY_CODEC_INDEX]))
+		return;
 
 	if (ac97 == chip->ac97[CS46XX_PRIMARY_CODEC_INDEX]) {
 		chip->ac97[CS46XX_PRIMARY_CODEC_INDEX] = NULL;
@@ -1864,7 +1872,7 @@
 		break;
 	default:
 		res = -EINVAL;
-		snd_assert(0, (void)0);
+		snd_BUG(); /* should never happen ... */
 	}
 
 	return res;
@@ -2236,7 +2244,7 @@
 		snd_printdd("cs46xx: CODOEC2 mode %04x\n",0x3);
 		snd_cs46xx_ac97_write(ac97,AC97_CSR_ACMODE,0x3);
 	} else {
-		snd_assert(0); /* should never happen ... */
+		snd_BUG(); /* should never happen ... */
 	}
 
 	udelay(50);
@@ -2553,7 +2561,8 @@
 {
 	struct snd_cs46xx *chip = gameport_get_port_data(gameport);
 
-	snd_assert(chip, return);
+	if (snd_BUG_ON(!chip))
+		return;
 	snd_cs46xx_pokeBA0(chip, BA0_JSPT, 0xFF);  //outb(gameport->io, 0xFF);
 }
 
@@ -2561,7 +2570,8 @@
 {
 	struct snd_cs46xx *chip = gameport_get_port_data(gameport);
 
-	snd_assert(chip, return 0);
+	if (snd_BUG_ON(!chip))
+		return 0;
 	return snd_cs46xx_peekBA0(chip, BA0_JSPT); //inb(gameport->io);
 }
 
@@ -2570,7 +2580,8 @@
 	struct snd_cs46xx *chip = gameport_get_port_data(gameport);
 	unsigned js1, js2, jst;
 
-	snd_assert(chip, return 0);
+	if (snd_BUG_ON(!chip))
+		return 0;
 
 	js1 = snd_cs46xx_peekBA0(chip, BA0_JSC1);
 	js2 = snd_cs46xx_peekBA0(chip, BA0_JSC2);
@@ -2754,7 +2765,8 @@
 {
 	int idx;
 
-	snd_assert(chip != NULL, return -EINVAL);
+	if (snd_BUG_ON(!chip))
+		return -EINVAL;
 
 	if (chip->active_ctrl)
 		chip->active_ctrl(chip, 1);
diff --git a/sound/pci/cs46xx/dsp_spos.c b/sound/pci/cs46xx/dsp_spos.c
index ccc8bed..f4f0c8f 100644
--- a/sound/pci/cs46xx/dsp_spos.c
+++ b/sound/pci/cs46xx/dsp_spos.c
@@ -63,7 +63,8 @@
 	u32 mop_operands,mop_type,wide_op;
 	struct dsp_spos_instance * ins = chip->dsp_spos_instance;
 
-	snd_assert( ((size % 2) == 0), return -EINVAL);
+	if (snd_BUG_ON(size %2))
+		return -EINVAL;
   
 	while (i < size) {
 		loval = data[i++];
@@ -289,7 +290,8 @@
 	int i;
 	struct dsp_spos_instance * ins = chip->dsp_spos_instance;
 
-	snd_assert(ins != NULL, return);
+	if (snd_BUG_ON(!ins))
+		return;
 
 	mutex_lock(&chip->spos_mutex);
 	for (i = 0; i < ins->nscb; ++i) {
@@ -404,7 +406,8 @@
 
 		/* if module has a code segment it must have
 		   symbol table */
-		snd_assert(module->symbol_table.symbols != NULL ,return -ENOMEM);
+		if (snd_BUG_ON(!module->symbol_table.symbols))
+			return -ENOMEM;
 		if (add_symbols(chip,module)) {
 			snd_printk(KERN_ERR "dsp_spos: failed to load symbol table\n");
 			return -ENOMEM;
@@ -1369,7 +1372,8 @@
 
 	valid_slots = snd_cs46xx_peekBA0(chip, BA0_ACOSV);
 
-	snd_assert (chip->nr_ac97_codecs == 1 || chip->nr_ac97_codecs == 2);
+	if (snd_BUG_ON(chip->nr_ac97_codecs != 1 && chip->nr_ac97_codecs != 2))
+		goto _fail_end;
 
 	if (chip->nr_ac97_codecs == 1) {
 		/* output on slot 5 and 11 
@@ -1609,11 +1613,14 @@
 
 		spdifo_scb_desc = cs46xx_dsp_create_scb(chip,"SPDIFOSCB",(u32 *)&spdifo_scb,SPDIFO_SCB_INST);
 
-		snd_assert(spdifo_scb_desc, return -EIO);
+		if (snd_BUG_ON(!spdifo_scb_desc))
+			return -EIO;
 		spdifi_scb_desc = cs46xx_dsp_create_scb(chip,"SPDIFISCB",(u32 *)&spdifi_scb,SPDIFI_SCB_INST);
-		snd_assert(spdifi_scb_desc, return -EIO);
+		if (snd_BUG_ON(!spdifi_scb_desc))
+			return -EIO;
 		async_codec_scb_desc = cs46xx_dsp_create_scb(chip,"AsynCodecInputSCB",(u32 *)&async_codec_input_scb, HFG_TREE_SCB);
-		snd_assert(async_codec_scb_desc, return -EIO);
+		if (snd_BUG_ON(!async_codec_scb_desc))
+			return -EIO;
 
 		async_codec_scb_desc->parent_scb_ptr = NULL;
 		async_codec_scb_desc->next_scb_ptr = spdifi_scb_desc;
@@ -1698,8 +1705,10 @@
 	chip->active_ctrl(chip, 1);
 	chip->amplifier_ctrl(chip, 1);
 
-	snd_assert (ins->asynch_rx_scb == NULL,return -EINVAL);
-	snd_assert (ins->spdif_in_src != NULL,return -EINVAL);
+	if (snd_BUG_ON(ins->asynch_rx_scb))
+		return -EINVAL;
+	if (snd_BUG_ON(!ins->spdif_in_src))
+		return -EINVAL;
 
 	mutex_lock(&chip->spos_mutex);
 
@@ -1754,8 +1763,10 @@
 {
 	struct dsp_spos_instance * ins = chip->dsp_spos_instance;
 
-	snd_assert (ins->asynch_rx_scb != NULL, return -EINVAL);
-	snd_assert (ins->spdif_in_src != NULL,return -EINVAL);	
+	if (snd_BUG_ON(!ins->asynch_rx_scb))
+		return -EINVAL;
+	if (snd_BUG_ON(!ins->spdif_in_src))
+		return -EINVAL;
 
 	mutex_lock(&chip->spos_mutex);
 
@@ -1780,8 +1791,10 @@
 {
 	struct dsp_spos_instance * ins = chip->dsp_spos_instance;
 
-	snd_assert (ins->pcm_input == NULL,return -EINVAL);
-	snd_assert (ins->ref_snoop_scb != NULL,return -EINVAL);
+	if (snd_BUG_ON(ins->pcm_input))
+		return -EINVAL;
+	if (snd_BUG_ON(!ins->ref_snoop_scb))
+		return -EINVAL;
 
 	mutex_lock(&chip->spos_mutex);
 	ins->pcm_input = cs46xx_add_record_source(chip,ins->ref_snoop_scb,PCMSERIALIN_PCM_SCB_ADDR,
@@ -1795,7 +1808,8 @@
 {
 	struct dsp_spos_instance * ins = chip->dsp_spos_instance;
 
-	snd_assert (ins->pcm_input != NULL,return -EINVAL);
+	if (snd_BUG_ON(!ins->pcm_input))
+		return -EINVAL;
 
 	mutex_lock(&chip->spos_mutex);
 	cs46xx_dsp_remove_scb (chip,ins->pcm_input);
@@ -1809,8 +1823,10 @@
 {
 	struct dsp_spos_instance * ins = chip->dsp_spos_instance;
 
-	snd_assert (ins->adc_input == NULL,return -EINVAL);
-	snd_assert (ins->codec_in_scb != NULL,return -EINVAL);
+	if (snd_BUG_ON(ins->adc_input))
+		return -EINVAL;
+	if (snd_BUG_ON(!ins->codec_in_scb))
+		return -EINVAL;
 
 	mutex_lock(&chip->spos_mutex);
 	ins->adc_input = cs46xx_add_record_source(chip,ins->codec_in_scb,PCMSERIALIN_SCB_ADDR,
@@ -1824,7 +1840,8 @@
 {
 	struct dsp_spos_instance * ins = chip->dsp_spos_instance;
 
-	snd_assert (ins->adc_input != NULL,return -EINVAL);
+	if (snd_BUG_ON(!ins->adc_input))
+		return -EINVAL;
 
 	mutex_lock(&chip->spos_mutex);
 	cs46xx_dsp_remove_scb (chip,ins->adc_input);
diff --git a/sound/pci/cs46xx/dsp_spos_scb_lib.c b/sound/pci/cs46xx/dsp_spos_scb_lib.c
index 2873cfe..dd7c41b 100644
--- a/sound/pci/cs46xx/dsp_spos_scb_lib.c
+++ b/sound/pci/cs46xx/dsp_spos_scb_lib.c
@@ -46,8 +46,11 @@
 	struct dsp_spos_instance * ins = chip->dsp_spos_instance;
 	int symbol_index = (int)(symbol - ins->symbol_table.symbols);
 
-	snd_assert(ins->symbol_table.nsymbols > 0,return);
-	snd_assert(symbol_index >= 0 && symbol_index < ins->symbol_table.nsymbols, return);
+	if (snd_BUG_ON(ins->symbol_table.nsymbols <= 0))
+		return;
+	if (snd_BUG_ON(symbol_index < 0 ||
+		       symbol_index >= ins->symbol_table.nsymbols))
+		return;
 
 	ins->symbol_table.symbols[symbol_index].deleted = 1;
 
@@ -116,8 +119,9 @@
 
 	if ( scb->parent_scb_ptr ) {
 		/* unlink parent SCB */
-		snd_assert ((scb->parent_scb_ptr->sub_list_ptr == scb ||
-			     scb->parent_scb_ptr->next_scb_ptr == scb),return);
+		if (snd_BUG_ON(scb->parent_scb_ptr->sub_list_ptr != scb &&
+			       scb->parent_scb_ptr->next_scb_ptr != scb))
+			return;
   
 		if (scb->parent_scb_ptr->sub_list_ptr == scb) {
 
@@ -140,7 +144,6 @@
 				scb->next_scb_ptr = ins->the_null_scb;
 			}
 		} else {
-			/* snd_assert ( (scb->sub_list_ptr == ins->the_null_scb), return); */
 			scb->parent_scb_ptr->next_scb_ptr = scb->next_scb_ptr;
 
 			if (scb->next_scb_ptr != ins->the_null_scb) {
@@ -181,16 +184,17 @@
 	unsigned long flags;
 
 	/* check integrety */
-	snd_assert ( (scb->index >= 0 && 
-		      scb->index < ins->nscb && 
-		      (ins->scbs + scb->index) == scb), return );
+	if (snd_BUG_ON(scb->index < 0 ||
+		       scb->index >= ins->nscb ||
+		       (ins->scbs + scb->index) != scb))
+		return;
 
 #if 0
 	/* can't remove a SCB with childs before 
 	   removing childs first  */
-	snd_assert ( (scb->sub_list_ptr == ins->the_null_scb &&
-		      scb->next_scb_ptr == ins->the_null_scb),
-		     goto _end);
+	if (snd_BUG_ON(scb->sub_list_ptr != ins->the_null_scb ||
+		       scb->next_scb_ptr != ins->the_null_scb))
+		goto _end;
 #endif
 
 	spin_lock_irqsave(&scb->lock, flags);
@@ -198,7 +202,8 @@
 	spin_unlock_irqrestore(&scb->lock, flags);
 
 	cs46xx_dsp_proc_free_scb_desc(scb);
-	snd_assert (scb->scb_symbol != NULL, return );
+	if (snd_BUG_ON(!scb->scb_symbol))
+		return;
 	remove_symbol (chip,scb->scb_symbol);
 
 	ins->scbs[scb->index].deleted = 1;
@@ -234,7 +239,6 @@
 		snd_info_free_entry(scb->proc_info);
 		scb->proc_info = NULL;
 
-		snd_assert (scb_info != NULL, return);
 		kfree (scb_info);
 	}
 }
@@ -291,7 +295,8 @@
   
 	unsigned long flags;
 
-	snd_assert (ins->the_null_scb != NULL,return NULL);
+	if (snd_BUG_ON(!ins->the_null_scb))
+		return NULL;
 
 	/* fill the data that will be wroten to DSP */
 	scb_data[SCBsubListPtr] = 
@@ -321,18 +326,20 @@
 #endif
 		/* link to  parent SCB */
 		if (scb_child_type == SCB_ON_PARENT_NEXT_SCB) {
-			snd_assert ( (scb->parent_scb_ptr->next_scb_ptr == ins->the_null_scb),
-				     return NULL);
+			if (snd_BUG_ON(scb->parent_scb_ptr->next_scb_ptr !=
+				       ins->the_null_scb))
+				return NULL;
 
 			scb->parent_scb_ptr->next_scb_ptr = scb;
 
 		} else if (scb_child_type == SCB_ON_PARENT_SUBLIST_SCB) {
-			snd_assert ( (scb->parent_scb_ptr->sub_list_ptr == ins->the_null_scb),
-				     return NULL);
+			if (snd_BUG_ON(scb->parent_scb_ptr->sub_list_ptr !=
+				       ins->the_null_scb))
+				return NULL;
 
 			scb->parent_scb_ptr->sub_list_ptr = scb;
 		} else {
-			snd_assert (0,return NULL);
+			snd_BUG();
 		}
 
 		spin_lock_irqsave(&chip->reg_lock, flags);
@@ -675,7 +682,7 @@
 		if (pass_through) {
 			/* wont work with any other rate than
 			   the native DSP rate */
-			snd_assert (rate == 48000);
+			snd_BUG_ON(rate != 48000);
 
 			scb = cs46xx_dsp_create_generic_scb(chip,scb_name,(u32 *)&src_task_scb,
 							    dest,"DMAREADER",parent_scb,
@@ -1142,7 +1149,8 @@
 	struct dsp_scb_descriptor * scb = from;
 
 	while (scb->next_scb_ptr != ins->the_null_scb) {
-		snd_assert (scb->next_scb_ptr != NULL, return NULL);
+		if (snd_BUG_ON(!scb->next_scb_ptr))
+			return NULL;
 
 		scb = scb->next_scb_ptr;
 	}
@@ -1246,10 +1254,11 @@
 		break;
 	case DSP_PCM_S71_CHANNEL:
 		/* TODO */
-		snd_assert(0);
+		snd_BUG();
 		break;
 	case DSP_IEC958_CHANNEL:
-		snd_assert (ins->asynch_tx_scb != NULL, return NULL);
+		if (snd_BUG_ON(!ins->asynch_tx_scb))
+			return NULL;
 		mixer_scb = ins->asynch_tx_scb;
 
 		/* if sample rate is set to 48khz we pass
@@ -1262,7 +1271,7 @@
 		}
 		break;
 	default:
-		snd_assert (0);
+		snd_BUG();
 		return NULL;
 	}
 	/* default sample rate is 44100 */
@@ -1308,7 +1317,8 @@
 				break;
 			}
 		}
-		snd_assert (src_index != -1,return NULL);
+		if (snd_BUG_ON(src_index == -1))
+			return NULL;
 
 		/* we need to create a new SRC SCB */
 		if (mixer_scb->sub_list_ptr == ins->the_null_scb) {
@@ -1462,9 +1472,10 @@
 	struct dsp_spos_instance * ins = chip->dsp_spos_instance;
 	unsigned long flags;
 
-	snd_assert(pcm_channel->active, return );
-	snd_assert(ins->npcm_channels > 0, return );
-	snd_assert(pcm_channel->src_scb->ref_count > 0, return );
+	if (snd_BUG_ON(!pcm_channel->active ||
+		       ins->npcm_channels <= 0 ||
+		       pcm_channel->src_scb->ref_count <= 0))
+		return;
 
 	spin_lock_irqsave(&chip->reg_lock, flags);
 	pcm_channel->unlinked = 1;
@@ -1479,8 +1490,9 @@
 	if (!pcm_channel->src_scb->ref_count) {
 		cs46xx_dsp_remove_scb(chip,pcm_channel->src_scb);
 
-		snd_assert (pcm_channel->src_slot >= 0 && pcm_channel->src_slot < DSP_MAX_SRC_NR,
-			    return );
+		if (snd_BUG_ON(pcm_channel->src_slot < 0 ||
+			       pcm_channel->src_slot >= DSP_MAX_SRC_NR))
+			return;
 
 		ins->src_scb_slots[pcm_channel->src_slot] = 0;
 		ins->nsrc_scb --;
@@ -1490,11 +1502,11 @@
 int cs46xx_dsp_pcm_unlink (struct snd_cs46xx * chip,
 			   struct dsp_pcm_channel_descriptor * pcm_channel)
 {
-	struct dsp_spos_instance * ins = chip->dsp_spos_instance;
 	unsigned long flags;
 
-	snd_assert(pcm_channel->active,return -EIO);
-	snd_assert(ins->npcm_channels > 0,return -EIO);
+	if (snd_BUG_ON(!pcm_channel->active ||
+		       chip->dsp_spos_instance->npcm_channels <= 0))
+		return -EIO;
 
 	spin_lock(&pcm_channel->src_scb->lock);
 
@@ -1537,7 +1549,7 @@
 
 	src_scb->sub_list_ptr = pcm_channel->pcm_reader_scb;
 
-	snd_assert (pcm_channel->pcm_reader_scb->parent_scb_ptr == NULL, ; );
+	snd_BUG_ON(pcm_channel->pcm_reader_scb->parent_scb_ptr);
 	pcm_channel->pcm_reader_scb->parent_scb_ptr = parent_scb;
 
 	spin_lock_irqsave(&chip->reg_lock, flags);
@@ -1564,7 +1576,8 @@
 	struct dsp_scb_descriptor * pcm_input;
 	int insert_point;
 
-	snd_assert (ins->record_mixer_scb != NULL,return NULL);
+	if (snd_BUG_ON(!ins->record_mixer_scb))
+		return NULL;
 
 	if (ins->record_mixer_scb->sub_list_ptr != ins->the_null_scb) {
 		parent = find_next_free_scb (chip,ins->record_mixer_scb->sub_list_ptr);
@@ -1583,7 +1596,8 @@
 
 int cs46xx_src_unlink(struct snd_cs46xx *chip, struct dsp_scb_descriptor * src)
 {
-	snd_assert (src->parent_scb_ptr != NULL,  return -EINVAL );
+	if (snd_BUG_ON(!src->parent_scb_ptr))
+		return -EINVAL;
 
 	/* mute SCB */
 	cs46xx_dsp_scb_set_volume (chip,src,0,0);
@@ -1598,8 +1612,10 @@
 	struct dsp_spos_instance * ins = chip->dsp_spos_instance;
 	struct dsp_scb_descriptor * parent_scb;
 
-	snd_assert (src->parent_scb_ptr == NULL,   return -EINVAL );
-	snd_assert(ins->master_mix_scb !=NULL,   return -EINVAL );
+	if (snd_BUG_ON(src->parent_scb_ptr))
+		return -EINVAL;
+	if (snd_BUG_ON(!ins->master_mix_scb))
+		return -EINVAL;
 
 	if (ins->master_mix_scb->sub_list_ptr != ins->the_null_scb) {
 		parent_scb = find_next_free_scb (chip,ins->master_mix_scb->sub_list_ptr);
@@ -1635,8 +1651,11 @@
 		return -EBUSY;
 	}
 
-	snd_assert (ins->asynch_tx_scb == NULL, return -EINVAL);
-	snd_assert (ins->master_mix_scb->next_scb_ptr == ins->the_null_scb, return -EINVAL);
+	if (snd_BUG_ON(ins->asynch_tx_scb))
+		return -EINVAL;
+	if (snd_BUG_ON(ins->master_mix_scb->next_scb_ptr !=
+		       ins->the_null_scb))
+		return -EINVAL;
 
 	/* reset output snooper sample buffer pointer */
 	snd_cs46xx_poke (chip, (ins->ref_snoop_scb->address + 2) << 2,
@@ -1676,10 +1695,15 @@
 	}
 
 	/* check integrety */
-	snd_assert (ins->asynch_tx_scb != NULL, return -EINVAL);
-	snd_assert (ins->spdif_pcm_input_scb != NULL,return -EINVAL);
-	snd_assert (ins->master_mix_scb->next_scb_ptr == ins->asynch_tx_scb, return -EINVAL);
-	snd_assert (ins->asynch_tx_scb->parent_scb_ptr == ins->master_mix_scb, return -EINVAL);
+	if (snd_BUG_ON(!ins->asynch_tx_scb))
+		return -EINVAL;
+	if (snd_BUG_ON(!ins->spdif_pcm_input_scb))
+		return -EINVAL;
+	if (snd_BUG_ON(ins->master_mix_scb->next_scb_ptr != ins->asynch_tx_scb))
+		return -EINVAL;
+	if (snd_BUG_ON(ins->asynch_tx_scb->parent_scb_ptr !=
+		       ins->master_mix_scb))
+		return -EINVAL;
 
 	cs46xx_dsp_remove_scb (chip,ins->spdif_pcm_input_scb);
 	cs46xx_dsp_remove_scb (chip,ins->asynch_tx_scb);
@@ -1734,7 +1758,8 @@
 {
 	struct dsp_spos_instance * ins = chip->dsp_spos_instance;
 
-	snd_assert (ins->asynch_tx_scb != NULL, return -EINVAL);
+	if (snd_BUG_ON(!ins->asynch_tx_scb))
+		return -EINVAL;
 
 	ins->spdif_status_out  &= ~DSP_SPDIF_STATUS_PLAYBACK_OPEN;
 
diff --git a/sound/pci/echoaudio/darla20_dsp.c b/sound/pci/echoaudio/darla20_dsp.c
index 4159e3b..2904330 100644
--- a/sound/pci/echoaudio/darla20_dsp.c
+++ b/sound/pci/echoaudio/darla20_dsp.c
@@ -34,7 +34,8 @@
 	int err;
 
 	DE_INIT(("init_hw() - Darla20\n"));
-	snd_assert((subdevice_id & 0xfff0) == DARLA20, return -ENODEV);
+	if (snd_BUG_ON((subdevice_id & 0xfff0) != DARLA20))
+		return -ENODEV;
 
 	if ((err = init_dsp_comm_page(chip))) {
 		DE_INIT(("init_hw - could not initialize DSP comm page\n"));
diff --git a/sound/pci/echoaudio/darla24_dsp.c b/sound/pci/echoaudio/darla24_dsp.c
index 79938ee..6022873 100644
--- a/sound/pci/echoaudio/darla24_dsp.c
+++ b/sound/pci/echoaudio/darla24_dsp.c
@@ -34,7 +34,8 @@
 	int err;
 
 	DE_INIT(("init_hw() - Darla24\n"));
-	snd_assert((subdevice_id & 0xfff0) == DARLA24, return -ENODEV);
+	if (snd_BUG_ON((subdevice_id & 0xfff0) != DARLA24))
+		return -ENODEV;
 
 	if ((err = init_dsp_comm_page(chip))) {
 		DE_INIT(("init_hw - could not initialize DSP comm page\n"));
@@ -148,8 +149,9 @@
 
 static int set_input_clock(struct echoaudio *chip, u16 clock)
 {
-	snd_assert(clock == ECHO_CLOCK_INTERNAL ||
-		   clock == ECHO_CLOCK_ESYNC, return -EINVAL);
+	if (snd_BUG_ON(clock != ECHO_CLOCK_INTERNAL &&
+		       clock != ECHO_CLOCK_ESYNC))
+		return -EINVAL;
 	chip->input_clock = clock;
 	return set_sample_rate(chip, chip->sample_rate);
 }
diff --git a/sound/pci/echoaudio/echo3g_dsp.c b/sound/pci/echoaudio/echo3g_dsp.c
index 48eb7c5..417e25a 100644
--- a/sound/pci/echoaudio/echo3g_dsp.c
+++ b/sound/pci/echoaudio/echo3g_dsp.c
@@ -47,7 +47,8 @@
 
 	local_irq_enable();
 	DE_INIT(("init_hw() - Echo3G\n"));
-	snd_assert((subdevice_id & 0xfff0) == ECHO3G, return -ENODEV);
+	if (snd_BUG_ON((subdevice_id & 0xfff0) != ECHO3G))
+		return -ENODEV;
 
 	if ((err = init_dsp_comm_page(chip))) {
 		DE_INIT(("init_hw - could not initialize DSP comm page\n"));
@@ -104,9 +105,11 @@
 	if ((err = init_line_levels(chip)) < 0)
 		return err;
 	err = set_digital_mode(chip, DIGITAL_MODE_SPDIF_RCA);
-	snd_assert(err >= 0, return err);
+	if (err < 0)
+		return err;
 	err = set_phantom_power(chip, 0);
-	snd_assert(err >= 0, return err);
+	if (err < 0)
+		return err;
 	err = set_professional_spdif(chip, TRUE);
 
 	DE_INIT(("init_hw done\n"));
diff --git a/sound/pci/echoaudio/echoaudio.c b/sound/pci/echoaudio/echoaudio.c
index e16dc92..160d470 100644
--- a/sound/pci/echoaudio/echoaudio.c
+++ b/sound/pci/echoaudio/echoaudio.c
@@ -503,7 +503,7 @@
 	if (pipe->index >= 0) {
 		DE_HWP(("hwp_ie free(%d)\n", pipe->index));
 		err = free_pipes(chip, pipe);
-		snd_assert(!err);
+		snd_BUG_ON(err);
 		chip->substream[pipe->index] = NULL;
 	}
 
@@ -690,8 +690,10 @@
 		return -EINVAL;
 	}
 
-	snd_assert(pipe_index < px_num(chip), return -EINVAL);
-	snd_assert(is_pipe_allocated(chip, pipe_index), return -EINVAL);
+	if (snd_BUG_ON(pipe_index >= px_num(chip)))
+		return -EINVAL;
+	if (snd_BUG_ON(!is_pipe_allocated(chip, pipe_index)))
+		return -EINVAL;
 	set_audio_format(chip, pipe_index, &format);
 	return 0;
 }
diff --git a/sound/pci/echoaudio/echoaudio_3g.c b/sound/pci/echoaudio/echoaudio_3g.c
index 52a9331..c3736bb 100644
--- a/sound/pci/echoaudio/echoaudio_3g.c
+++ b/sound/pci/echoaudio/echoaudio_3g.c
@@ -103,9 +103,11 @@
 	int err, i, o;
 
 	/* All audio channels must be closed before changing the digital mode */
-	snd_assert(!chip->pipe_alloc_mask, return -EAGAIN);
+	if (snd_BUG_ON(chip->pipe_alloc_mask))
+		return -EAGAIN;
 
-	snd_assert(chip->digital_modes & (1 << mode), return -EINVAL);
+	if (snd_BUG_ON(!(chip->digital_modes & (1 << mode))))
+		return -EINVAL;
 
 	previous_mode = chip->digital_mode;
 	err = dsp_set_digital_mode(chip, mode);
@@ -267,8 +269,9 @@
 		return 0;
 	}
 
-	snd_assert(rate < 50000 || chip->digital_mode != DIGITAL_MODE_ADAT,
-		   return -EINVAL);
+	if (snd_BUG_ON(rate >= 50000 &&
+		       chip->digital_mode == DIGITAL_MODE_ADAT))
+		return -EINVAL;
 
 	clock = 0;
 	control_reg = le32_to_cpu(chip->comm_page->control_register);
diff --git a/sound/pci/echoaudio/echoaudio_dsp.c b/sound/pci/echoaudio/echoaudio_dsp.c
index e6c1007..be0e181 100644
--- a/sound/pci/echoaudio/echoaudio_dsp.c
+++ b/sound/pci/echoaudio/echoaudio_dsp.c
@@ -474,7 +474,8 @@
 	const struct firmware *fw;
 	int box_type, err;
 
-	snd_assert(chip->dsp_code_to_load && chip->comm_page, return -EPERM);
+	if (snd_BUG_ON(!chip->dsp_code_to_load || !chip->comm_page))
+		return -EPERM;
 
 	/* See if the ASIC is present and working - only if the DSP is already loaded */
 	if (chip->dsp_code) {
@@ -512,8 +513,8 @@
 /* Set the nominal level for an input or output bus (true = -10dBV, false = +4dBu) */
 static int set_nominal_level(struct echoaudio *chip, u16 index, char consumer)
 {
-	snd_assert(index < num_busses_out(chip) + num_busses_in(chip),
-		   return -EINVAL);
+	if (snd_BUG_ON(index >= num_busses_out(chip) + num_busses_in(chip)))
+		return -EINVAL;
 
 	/* Wait for the handshake (OK even if ASIC is not loaded) */
 	if (wait_handshake(chip))
@@ -536,7 +537,8 @@
 /* Set the gain for a single physical output channel (dB). */
 static int set_output_gain(struct echoaudio *chip, u16 channel, s8 gain)
 {
-	snd_assert(channel < num_busses_out(chip), return -EINVAL);
+	if (snd_BUG_ON(channel >= num_busses_out(chip)))
+		return -EINVAL;
 
 	if (wait_handshake(chip))
 		return -EIO;
@@ -554,8 +556,9 @@
 static int set_monitor_gain(struct echoaudio *chip, u16 output, u16 input,
 			    s8 gain)
 {
-	snd_assert(output < num_busses_out(chip) &&
-		   input < num_busses_in(chip), return -EINVAL);
+	if (snd_BUG_ON(output >= num_busses_out(chip) ||
+		    input >= num_busses_in(chip)))
+		return -EINVAL;
 
 	if (wait_handshake(chip))
 		return -EIO;
@@ -1065,8 +1068,10 @@
 	int i;
 
 	DE_ACT(("free_pipes: Pipe %d\n", pipe->index));
-	snd_assert(is_pipe_allocated(chip, pipe->index), return -EINVAL);
-	snd_assert(pipe->state == PIPE_STATE_STOPPED, return -EINVAL);
+	if (snd_BUG_ON(!is_pipe_allocated(chip, pipe->index)))
+		return -EINVAL;
+	if (snd_BUG_ON(pipe->state != PIPE_STATE_STOPPED))
+		return -EINVAL;
 
 	for (channel_mask = i = 0; i < pipe->interleave; i++)
 		channel_mask |= 1 << (pipe->index + i);
diff --git a/sound/pci/echoaudio/echoaudio_gml.c b/sound/pci/echoaudio/echoaudio_gml.c
index 3aa37e7..afa2733 100644
--- a/sound/pci/echoaudio/echoaudio_gml.c
+++ b/sound/pci/echoaudio/echoaudio_gml.c
@@ -112,9 +112,11 @@
 		return -EIO;
 
 	/* All audio channels must be closed before changing the digital mode */
-	snd_assert(!chip->pipe_alloc_mask, return -EAGAIN);
+	if (snd_BUG_ON(chip->pipe_alloc_mask))
+		return -EAGAIN;
 
-	snd_assert(chip->digital_modes & (1 << mode), return -EINVAL);
+	if (snd_BUG_ON(!(chip->digital_modes & (1 << mode))))
+		return -EINVAL;
 
 	previous_mode = chip->digital_mode;
 	err = dsp_set_digital_mode(chip, mode);
diff --git a/sound/pci/echoaudio/gina20_dsp.c b/sound/pci/echoaudio/gina20_dsp.c
index 2757c89..db6c952 100644
--- a/sound/pci/echoaudio/gina20_dsp.c
+++ b/sound/pci/echoaudio/gina20_dsp.c
@@ -38,7 +38,8 @@
 	int err;
 
 	DE_INIT(("init_hw() - Gina20\n"));
-	snd_assert((subdevice_id & 0xfff0) == GINA20, return -ENODEV);
+	if (snd_BUG_ON((subdevice_id & 0xfff0) != GINA20))
+		return -ENODEV;
 
 	if ((err = init_dsp_comm_page(chip))) {
 		DE_INIT(("init_hw - could not initialize DSP comm page\n"));
@@ -177,7 +178,8 @@
 /* Set input bus gain (one unit is 0.5dB !) */
 static int set_input_gain(struct echoaudio *chip, u16 input, int gain)
 {
-	snd_assert(input < num_busses_in(chip), return -EINVAL);
+	if (snd_BUG_ON(input >= num_busses_in(chip)))
+		return -EINVAL;
 
 	if (wait_handshake(chip))
 		return -EIO;
diff --git a/sound/pci/echoaudio/gina24_dsp.c b/sound/pci/echoaudio/gina24_dsp.c
index 144fc56..2fef37a 100644
--- a/sound/pci/echoaudio/gina24_dsp.c
+++ b/sound/pci/echoaudio/gina24_dsp.c
@@ -43,7 +43,8 @@
 	int err;
 
 	DE_INIT(("init_hw() - Gina24\n"));
-	snd_assert((subdevice_id & 0xfff0) == GINA24, return -ENODEV);
+	if (snd_BUG_ON((subdevice_id & 0xfff0) != GINA24))
+		return -ENODEV;
 
 	if ((err = init_dsp_comm_page(chip))) {
 		DE_INIT(("init_hw - could not initialize DSP comm page\n"));
@@ -84,7 +85,8 @@
 	if ((err = init_line_levels(chip)) < 0)
 		return err;
 	err = set_digital_mode(chip, DIGITAL_MODE_SPDIF_RCA);
-	snd_assert(err >= 0, return err);
+	if (err < 0)
+		return err;
 	err = set_professional_spdif(chip, TRUE);
 
 	DE_INIT(("init_hw done\n"));
@@ -163,8 +165,9 @@
 {
 	u32 control_reg, clock;
 
-	snd_assert(rate < 50000 || chip->digital_mode != DIGITAL_MODE_ADAT,
-		   return -EINVAL);
+	if (snd_BUG_ON(rate >= 50000 &&
+		       chip->digital_mode == DIGITAL_MODE_ADAT))
+		return -EINVAL;
 
 	/* Only set the clock for internal mode. */
 	if (chip->input_clock != ECHO_CLOCK_INTERNAL) {
diff --git a/sound/pci/echoaudio/indigo_dsp.c b/sound/pci/echoaudio/indigo_dsp.c
index d6ac773..f05e39f 100644
--- a/sound/pci/echoaudio/indigo_dsp.c
+++ b/sound/pci/echoaudio/indigo_dsp.c
@@ -39,7 +39,8 @@
 	int err;
 
 	DE_INIT(("init_hw() - Indigo\n"));
-	snd_assert((subdevice_id & 0xfff0) == INDIGO, return -ENODEV);
+	if (snd_BUG_ON((subdevice_id & 0xfff0) != INDIGO))
+		return -ENODEV;
 
 	if ((err = init_dsp_comm_page(chip))) {
 		DE_INIT(("init_hw - could not initialize DSP comm page\n"));
@@ -143,8 +144,9 @@
 {
 	int index;
 
-	snd_assert(pipe < num_pipes_out(chip) &&
-		   output < num_busses_out(chip), return -EINVAL);
+	if (snd_BUG_ON(pipe >= num_pipes_out(chip) ||
+		       output >= num_busses_out(chip)))
+		return -EINVAL;
 
 	if (wait_handshake(chip))
 		return -EIO;
diff --git a/sound/pci/echoaudio/indigodj_dsp.c b/sound/pci/echoaudio/indigodj_dsp.c
index 500e150..90730a5 100644
--- a/sound/pci/echoaudio/indigodj_dsp.c
+++ b/sound/pci/echoaudio/indigodj_dsp.c
@@ -39,7 +39,8 @@
 	int err;
 
 	DE_INIT(("init_hw() - Indigo DJ\n"));
-	snd_assert((subdevice_id & 0xfff0) == INDIGO_DJ, return -ENODEV);
+	if (snd_BUG_ON((subdevice_id & 0xfff0) != INDIGO_DJ))
+		return -ENODEV;
 
 	if ((err = init_dsp_comm_page(chip))) {
 		DE_INIT(("init_hw - could not initialize DSP comm page\n"));
@@ -143,8 +144,9 @@
 {
 	int index;
 
-	snd_assert(pipe < num_pipes_out(chip) &&
-		   output < num_busses_out(chip), return -EINVAL);
+	if (snd_BUG_ON(pipe >= num_pipes_out(chip) ||
+		       output >= num_busses_out(chip)))
+		return -EINVAL;
 
 	if (wait_handshake(chip))
 		return -EIO;
diff --git a/sound/pci/echoaudio/indigoio_dsp.c b/sound/pci/echoaudio/indigoio_dsp.c
index f3ad13d..a7e09ec 100644
--- a/sound/pci/echoaudio/indigoio_dsp.c
+++ b/sound/pci/echoaudio/indigoio_dsp.c
@@ -39,7 +39,8 @@
 	int err;
 
 	DE_INIT(("init_hw() - Indigo IO\n"));
-	snd_assert((subdevice_id & 0xfff0) == INDIGO_IO, return -ENODEV);
+	if (snd_BUG_ON((subdevice_id & 0xfff0) != INDIGO_IO))
+		return -ENODEV;
 
 	if ((err = init_dsp_comm_page(chip))) {
 		DE_INIT(("init_hw - could not initialize DSP comm page\n"));
@@ -114,8 +115,9 @@
 {
 	int index;
 
-	snd_assert(pipe < num_pipes_out(chip) &&
-		   output < num_busses_out(chip), return -EINVAL);
+	if (snd_BUG_ON(pipe >= num_pipes_out(chip) ||
+		       output >= num_busses_out(chip)))
+		return -EINVAL;
 
 	if (wait_handshake(chip))
 		return -EIO;
diff --git a/sound/pci/echoaudio/layla20_dsp.c b/sound/pci/echoaudio/layla20_dsp.c
index 990c9a6..ede75c6 100644
--- a/sound/pci/echoaudio/layla20_dsp.c
+++ b/sound/pci/echoaudio/layla20_dsp.c
@@ -42,7 +42,8 @@
 	int err;
 
 	DE_INIT(("init_hw() - Layla20\n"));
-	snd_assert((subdevice_id & 0xfff0) == LAYLA20, return -ENODEV);
+	if (snd_BUG_ON((subdevice_id & 0xfff0) != LAYLA20))
+		return -ENODEV;
 
 	if ((err = init_dsp_comm_page(chip))) {
 		DE_INIT(("init_hw - could not initialize DSP comm page\n"));
@@ -155,7 +156,8 @@
 
 static int set_sample_rate(struct echoaudio *chip, u32 rate)
 {
-	snd_assert(rate >= 8000 && rate <= 50000, return -EINVAL);
+	if (snd_BUG_ON(rate < 8000 || rate > 50000))
+		return -EINVAL;
 
 	/* Only set the clock for internal mode. Do not return failure,
 	   simply treat it as a non-event. */
@@ -252,7 +254,8 @@
 /* Set input bus gain (one unit is 0.5dB !) */
 static int set_input_gain(struct echoaudio *chip, u16 input, int gain)
 {
-	snd_assert(input < num_busses_in(chip), return -EINVAL);
+	if (snd_BUG_ON(input >= num_busses_in(chip)))
+		return -EINVAL;
 
 	if (wait_handshake(chip))
 		return -EIO;
diff --git a/sound/pci/echoaudio/layla24_dsp.c b/sound/pci/echoaudio/layla24_dsp.c
index 97e42e1..d61b5cb 100644
--- a/sound/pci/echoaudio/layla24_dsp.c
+++ b/sound/pci/echoaudio/layla24_dsp.c
@@ -42,7 +42,8 @@
 	int err;
 
 	DE_INIT(("init_hw() - Layla24\n"));
-	snd_assert((subdevice_id & 0xfff0) == LAYLA24, return -ENODEV);
+	if (snd_BUG_ON((subdevice_id & 0xfff0) != LAYLA24))
+		return -ENODEV;
 
 	if ((err = init_dsp_comm_page(chip))) {
 		DE_INIT(("init_hw - could not initialize DSP comm page\n"));
@@ -73,7 +74,8 @@
 		return err;
 
 	err = set_digital_mode(chip, DIGITAL_MODE_SPDIF_RCA);
-	snd_assert(err >= 0, return err);
+	if (err < 0)
+		return err;
 	err = set_professional_spdif(chip, TRUE);
 
 	DE_INIT(("init_hw done\n"));
@@ -158,8 +160,9 @@
 {
 	u32 control_reg, clock, base_rate;
 
-	snd_assert(rate < 50000 || chip->digital_mode != DIGITAL_MODE_ADAT,
-		   return -EINVAL);
+	if (snd_BUG_ON(rate >= 50000 &&
+		       chip->digital_mode == DIGITAL_MODE_ADAT))
+		return -EINVAL;
 
 	/* Only set the clock for internal mode. */
 	if (chip->input_clock != ECHO_CLOCK_INTERNAL) {
diff --git a/sound/pci/echoaudio/mia_dsp.c b/sound/pci/echoaudio/mia_dsp.c
index 891c705..2273866 100644
--- a/sound/pci/echoaudio/mia_dsp.c
+++ b/sound/pci/echoaudio/mia_dsp.c
@@ -42,7 +42,8 @@
 	int err;
 
 	DE_INIT(("init_hw() - Mia\n"));
-	snd_assert((subdevice_id & 0xfff0) == MIA, return -ENODEV);
+	if (snd_BUG_ON((subdevice_id & 0xfff0) != MIA))
+		return -ENODEV;
 
 	if ((err = init_dsp_comm_page(chip))) {
 		DE_INIT(("init_hw - could not initialize DSP comm page\n"));
@@ -161,8 +162,9 @@
 static int set_input_clock(struct echoaudio *chip, u16 clock)
 {
 	DE_ACT(("set_input_clock(%d)\n", clock));
-	snd_assert(clock == ECHO_CLOCK_INTERNAL || clock == ECHO_CLOCK_SPDIF,
-		   return -EINVAL);
+	if (snd_BUG_ON(clock != ECHO_CLOCK_INTERNAL &&
+		       clock != ECHO_CLOCK_SPDIF))
+		return -EINVAL;
 
 	chip->input_clock = clock;
 	return set_sample_rate(chip, chip->sample_rate);
@@ -176,8 +178,9 @@
 {
 	int index;
 
-	snd_assert(pipe < num_pipes_out(chip) &&
-		   output < num_busses_out(chip), return -EINVAL);
+	if (snd_BUG_ON(pipe >= num_pipes_out(chip) ||
+		       output >= num_busses_out(chip)))
+		return -EINVAL;
 
 	if (wait_handshake(chip))
 		return -EIO;
diff --git a/sound/pci/echoaudio/midi.c b/sound/pci/echoaudio/midi.c
index 91f5bff..77bf2a8 100644
--- a/sound/pci/echoaudio/midi.c
+++ b/sound/pci/echoaudio/midi.c
@@ -59,7 +59,8 @@
 Returns how many actually written or < 0 on error */
 static int write_midi(struct echoaudio *chip, u8 *data, int bytes)
 {
-	snd_assert(bytes > 0 && bytes < MIDI_OUT_BUFFER_SIZE, return -EINVAL);
+	if (snd_BUG_ON(bytes <= 0 || bytes >= MIDI_OUT_BUFFER_SIZE))
+		return -EINVAL;
 
 	if (wait_handshake(chip))
 		return -EIO;
@@ -119,7 +120,8 @@
 	/* The count is at index 0, followed by actual data */
 	count = le16_to_cpu(chip->comm_page->midi_input[0]);
 
-	snd_assert(count < MIDI_IN_BUFFER_SIZE, return 0);
+	if (snd_BUG_ON(count >= MIDI_IN_BUFFER_SIZE))
+		return 0;
 
 	/* Get the MIDI data from the comm page */
 	i = 1;
diff --git a/sound/pci/echoaudio/mona_dsp.c b/sound/pci/echoaudio/mona_dsp.c
index c0b4bf0..eaa619b 100644
--- a/sound/pci/echoaudio/mona_dsp.c
+++ b/sound/pci/echoaudio/mona_dsp.c
@@ -43,7 +43,8 @@
 	int err;
 
 	DE_INIT(("init_hw() - Mona\n"));
-	snd_assert((subdevice_id & 0xfff0) == MONA, return -ENODEV);
+	if (snd_BUG_ON((subdevice_id & 0xfff0) != MONA))
+		return -ENODEV;
 
 	if ((err = init_dsp_comm_page(chip))) {
 		DE_INIT(("init_hw - could not initialize DSP comm page\n"));
@@ -79,7 +80,8 @@
 		return err;
 
 	err = set_digital_mode(chip, DIGITAL_MODE_SPDIF_RCA);
-	snd_assert(err >= 0, return err);
+	if (err < 0)
+		return err;
 	err = set_professional_spdif(chip, TRUE);
 
 	DE_INIT(("init_hw done\n"));
diff --git a/sound/pci/emu10k1/emu10k1_callback.c b/sound/pci/emu10k1/emu10k1_callback.c
index 45088eb..0e649dc 100644
--- a/sound/pci/emu10k1/emu10k1_callback.c
+++ b/sound/pci/emu10k1/emu10k1_callback.c
@@ -145,7 +145,8 @@
 {
 	struct snd_emu10k1 *hw;
 	
-	snd_assert(vp, return);
+	if (snd_BUG_ON(!vp))
+		return;
 	hw = vp->hw;
 	snd_emu10k1_ptr_write(hw, DCYSUSV, vp->ch, 0x807f | DCYSUSV_CHANNELENABLE_MASK);
 	if (vp->block) {
@@ -325,7 +326,8 @@
 	
 	hw = vp->hw;
 	ch = vp->ch;
-	snd_assert(ch >= 0, return -EINVAL);
+	if (snd_BUG_ON(ch < 0))
+		return -EINVAL;
 	chan = vp->chan;
 
 	emem = (struct snd_emu10k1_memblk *)vp->block;
diff --git a/sound/pci/emu10k1/emu10k1_patch.c b/sound/pci/emu10k1/emu10k1_patch.c
index 42bae6f..e10f027b 100644
--- a/sound/pci/emu10k1/emu10k1_patch.c
+++ b/sound/pci/emu10k1/emu10k1_patch.c
@@ -46,8 +46,8 @@
 	struct snd_emu10k1 *emu;
 
 	emu = rec->hw;
-	snd_assert(sp != NULL, return -EINVAL);
-	snd_assert(hdr != NULL, return -EINVAL);
+	if (snd_BUG_ON(!sp || !hdr))
+		return -EINVAL;
 
 	if (sp->v.size == 0) {
 		snd_printd("emu: rom font for sample %d\n", sp->v.sample);
@@ -104,7 +104,8 @@
 	size = BLANK_HEAD_SIZE;
 	if (! (sp->v.mode_flags & SNDRV_SFNT_SAMPLE_8BITS))
 		size *= 2;
-	snd_assert(offset + size <= blocksize, return -EINVAL);
+	if (offset + size > blocksize)
+		return -EINVAL;
 	snd_emu10k1_synth_bzero(emu, sp->block, offset, size);
 	offset += size;
 
@@ -112,7 +113,8 @@
 	size = loopend;
 	if (! (sp->v.mode_flags & SNDRV_SFNT_SAMPLE_8BITS))
 		size *= 2;
-	snd_assert(offset + size <= blocksize, return -EINVAL);
+	if (offset + size > blocksize)
+		return -EINVAL;
 	if (snd_emu10k1_synth_copy_from_user(emu, sp->block, offset, data, size)) {
 		snd_emu10k1_synth_free(emu, sp->block);
 		sp->block = NULL;
@@ -129,12 +131,14 @@
 			int woffset;
 			unsigned short *wblock = (unsigned short*)block;
 			woffset = offset / 2;
-			snd_assert(offset + loopsize*2 <= blocksize, return -EINVAL);
+			if (offset + loopsize * 2 > blocksize)
+				return -EINVAL;
 			for (i = 0; i < loopsize; i++)
 				wblock[woffset + i] = wblock[woffset - i -1];
 			offset += loopsize * 2;
 		} else {
-			snd_assert(offset + loopsize <= blocksize, return -EINVAL);
+			if (offset + loopsize > blocksize)
+				return -EINVAL;
 			for (i = 0; i < loopsize; i++)
 				block[offset + i] = block[offset - i -1];
 			offset += loopsize;
@@ -154,7 +158,8 @@
 
 	/* loopend -> sample end */
 	size = sp->v.size - loopend;
-	snd_assert(size >= 0, return -EINVAL);
+	if (size < 0)
+		return -EINVAL;
 	if (! (sp->v.mode_flags & SNDRV_SFNT_SAMPLE_8BITS))
 		size *= 2;
 	if (snd_emu10k1_synth_copy_from_user(emu, sp->block, offset, data, size)) {
@@ -212,8 +217,8 @@
 	struct snd_emu10k1 *emu;
 
 	emu = rec->hw;
-	snd_assert(sp != NULL, return -EINVAL);
-	snd_assert(hdr != NULL, return -EINVAL);
+	if (snd_BUG_ON(!sp || !hdr))
+		return -EINVAL;
 
 	if (sp->block) {
 		snd_emu10k1_synth_free(emu, sp->block);
diff --git a/sound/pci/emu10k1/emu10k1x.c b/sound/pci/emu10k1/emu10k1x.c
index 491a4a5..5ff4dbb 100644
--- a/sound/pci/emu10k1/emu10k1x.c
+++ b/sound/pci/emu10k1/emu10k1x.c
@@ -1319,7 +1319,8 @@
 	unsigned long flags;
 	
 	emu = midi->emu;
-	snd_assert(emu, return -ENXIO);
+	if (snd_BUG_ON(!emu))
+		return -ENXIO;
 	spin_lock_irqsave(&midi->open_lock, flags);
 	midi->midi_mode |= EMU10K1X_MIDI_MODE_INPUT;
 	midi->substream_input = substream;
@@ -1345,7 +1346,8 @@
 	unsigned long flags;
 
 	emu = midi->emu;
-	snd_assert(emu, return -ENXIO);
+	if (snd_BUG_ON(!emu))
+		return -ENXIO;
 	spin_lock_irqsave(&midi->open_lock, flags);
 	midi->midi_mode |= EMU10K1X_MIDI_MODE_OUTPUT;
 	midi->substream_output = substream;
@@ -1372,7 +1374,8 @@
 	int err = 0;
 
 	emu = midi->emu;
-	snd_assert(emu, return -ENXIO);
+	if (snd_BUG_ON(!emu))
+		return -ENXIO;
 	spin_lock_irqsave(&midi->open_lock, flags);
 	snd_emu10k1x_intr_disable(emu, midi->rx_enable);
 	midi->midi_mode &= ~EMU10K1X_MIDI_MODE_INPUT;
@@ -1394,7 +1397,8 @@
 	int err = 0;
 
 	emu = midi->emu;
-	snd_assert(emu, return -ENXIO);
+	if (snd_BUG_ON(!emu))
+		return -ENXIO;
 	spin_lock_irqsave(&midi->open_lock, flags);
 	snd_emu10k1x_intr_disable(emu, midi->tx_enable);
 	midi->midi_mode &= ~EMU10K1X_MIDI_MODE_OUTPUT;
@@ -1413,7 +1417,8 @@
 	struct emu10k1x *emu;
 	struct emu10k1x_midi *midi = substream->rmidi->private_data;
 	emu = midi->emu;
-	snd_assert(emu, return);
+	if (snd_BUG_ON(!emu))
+		return;
 
 	if (up)
 		snd_emu10k1x_intr_enable(emu, midi->rx_enable);
@@ -1428,7 +1433,8 @@
 	unsigned long flags;
 
 	emu = midi->emu;
-	snd_assert(emu, return);
+	if (snd_BUG_ON(!emu))
+		return;
 
 	if (up) {
 		int max = 4;
diff --git a/sound/pci/emu10k1/emufx.c b/sound/pci/emu10k1/emufx.c
index 71dc4c8..7dba08f 100644
--- a/sound/pci/emu10k1/emufx.c
+++ b/sound/pci/emu10k1/emufx.c
@@ -487,7 +487,8 @@
 				 u32 op, u32 r, u32 a, u32 x, u32 y)
 {
 	u_int32_t *code;
-	snd_assert(*ptr < 512, return);
+	if (snd_BUG_ON(*ptr >= 512))
+		return;
 	code = (u_int32_t __force *)icode->code + (*ptr) * 2;
 	set_bit(*ptr, icode->code_valid);
 	code[0] = ((x & 0x3ff) << 10) | (y & 0x3ff);
@@ -503,7 +504,8 @@
 					u32 op, u32 r, u32 a, u32 x, u32 y)
 {
 	u_int32_t *code;
-	snd_assert(*ptr < 1024, return);
+	if (snd_BUG_ON(*ptr >= 1024))
+		return;
 	code = (u_int32_t __force *)icode->code + (*ptr) * 2;
 	set_bit(*ptr, icode->code_valid);
 	code[0] = ((x & 0x7ff) << 12) | (y & 0x7ff);
diff --git a/sound/pci/emu10k1/emumpu401.c b/sound/pci/emu10k1/emumpu401.c
index c4d76d1..8578c70 100644
--- a/sound/pci/emu10k1/emumpu401.c
+++ b/sound/pci/emu10k1/emumpu401.c
@@ -157,7 +157,8 @@
 	unsigned long flags;
 
 	emu = midi->emu;
-	snd_assert(emu, return -ENXIO);
+	if (snd_BUG_ON(!emu))
+		return -ENXIO;
 	spin_lock_irqsave(&midi->open_lock, flags);
 	midi->midi_mode |= EMU10K1_MIDI_MODE_INPUT;
 	midi->substream_input = substream;
@@ -183,7 +184,8 @@
 	unsigned long flags;
 
 	emu = midi->emu;
-	snd_assert(emu, return -ENXIO);
+	if (snd_BUG_ON(!emu))
+		return -ENXIO;
 	spin_lock_irqsave(&midi->open_lock, flags);
 	midi->midi_mode |= EMU10K1_MIDI_MODE_OUTPUT;
 	midi->substream_output = substream;
@@ -210,7 +212,8 @@
 	int err = 0;
 
 	emu = midi->emu;
-	snd_assert(emu, return -ENXIO);
+	if (snd_BUG_ON(!emu))
+		return -ENXIO;
 	spin_lock_irqsave(&midi->open_lock, flags);
 	snd_emu10k1_intr_disable(emu, midi->rx_enable);
 	midi->midi_mode &= ~EMU10K1_MIDI_MODE_INPUT;
@@ -232,7 +235,8 @@
 	int err = 0;
 
 	emu = midi->emu;
-	snd_assert(emu, return -ENXIO);
+	if (snd_BUG_ON(!emu))
+		return -ENXIO;
 	spin_lock_irqsave(&midi->open_lock, flags);
 	snd_emu10k1_intr_disable(emu, midi->tx_enable);
 	midi->midi_mode &= ~EMU10K1_MIDI_MODE_OUTPUT;
@@ -251,7 +255,8 @@
 	struct snd_emu10k1 *emu;
 	struct snd_emu10k1_midi *midi = (struct snd_emu10k1_midi *)substream->rmidi->private_data;
 	emu = midi->emu;
-	snd_assert(emu, return);
+	if (snd_BUG_ON(!emu))
+		return;
 
 	if (up)
 		snd_emu10k1_intr_enable(emu, midi->rx_enable);
@@ -266,7 +271,8 @@
 	unsigned long flags;
 
 	emu = midi->emu;
-	snd_assert(emu, return);
+	if (snd_BUG_ON(!emu))
+		return;
 
 	if (up) {
 		int max = 4;
diff --git a/sound/pci/emu10k1/memory.c b/sound/pci/emu10k1/memory.c
index 7d379f5..e8ad56e 100644
--- a/sound/pci/emu10k1/memory.c
+++ b/sound/pci/emu10k1/memory.c
@@ -107,7 +107,8 @@
 
 	list_for_each (pos, &emu->mapped_link_head) {
 		struct snd_emu10k1_memblk *blk = get_emu10k1_memblk(pos, mapped_link);
-		snd_assert(blk->mapped_page >= 0, continue);
+		if (blk->mapped_page < 0)
+			continue;
 		size = blk->mapped_page - page;
 		if (size == npages) {
 			*nextp = pos;
@@ -300,10 +301,14 @@
 	struct snd_emu10k1_memblk *blk;
 	int page, err, idx;
 
-	snd_assert(emu, return NULL);
-	snd_assert(runtime->dma_bytes > 0 && runtime->dma_bytes < MAXPAGES * EMUPAGESIZE, return NULL);
+	if (snd_BUG_ON(!emu))
+		return NULL;
+	if (snd_BUG_ON(runtime->dma_bytes <= 0 ||
+		       runtime->dma_bytes >= MAXPAGES * EMUPAGESIZE))
+		return NULL;
 	hdr = emu->memhdr;
-	snd_assert(hdr, return NULL);
+	if (snd_BUG_ON(!hdr))
+		return NULL;
 
 	mutex_lock(&hdr->block_mutex);
 	blk = search_empty(emu, runtime->dma_bytes);
@@ -353,7 +358,8 @@
  */
 int snd_emu10k1_free_pages(struct snd_emu10k1 *emu, struct snd_util_memblk *blk)
 {
-	snd_assert(emu && blk, return -EINVAL);
+	if (snd_BUG_ON(!emu || !blk))
+		return -EINVAL;
 	return snd_emu10k1_synth_free(emu, blk);
 }
 
@@ -498,7 +504,8 @@
 static inline void *offset_ptr(struct snd_emu10k1 *emu, int page, int offset)
 {
 	char *ptr;
-	snd_assert(page >= 0 && page < emu->max_cache_pages, return NULL);
+	if (snd_BUG_ON(page < 0 || page >= emu->max_cache_pages))
+		return NULL;
 	ptr = emu->page_ptr_table[page];
 	if (! ptr) {
 		printk(KERN_ERR "emu10k1: access to NULL ptr: page = %d\n", page);
diff --git a/sound/pci/emu10k1/voice.c b/sound/pci/emu10k1/voice.c
index 958cb2a..d7300a1 100644
--- a/sound/pci/emu10k1/voice.c
+++ b/sound/pci/emu10k1/voice.c
@@ -111,8 +111,10 @@
 	unsigned long flags;
 	int result;
 
-	snd_assert(rvoice != NULL, return -EINVAL);
-	snd_assert(number, return -EINVAL);
+	if (snd_BUG_ON(!rvoice))
+		return -EINVAL;
+	if (snd_BUG_ON(!number))
+		return -EINVAL;
 
 	spin_lock_irqsave(&emu->voice_lock, flags);
 	for (;;) {
@@ -145,7 +147,8 @@
 {
 	unsigned long flags;
 
-	snd_assert(pvoice != NULL, return -EINVAL);
+	if (snd_BUG_ON(!pvoice))
+		return -EINVAL;
 	spin_lock_irqsave(&emu->voice_lock, flags);
 	pvoice->interrupt = NULL;
 	pvoice->use = pvoice->pcm = pvoice->synth = pvoice->midi = pvoice->efx = 0;
diff --git a/sound/pci/es1938.c b/sound/pci/es1938.c
index 84fac1f..4cd9a1fa 100644
--- a/sound/pci/es1938.c
+++ b/sound/pci/es1938.c
@@ -860,7 +860,8 @@
 	struct es1938 *chip = snd_pcm_substream_chip(substream);
 	pos <<= chip->dma1_shift;
 	count <<= chip->dma1_shift;
-	snd_assert(pos + count <= chip->dma1_size, return -EINVAL);
+	if (snd_BUG_ON(pos + count > chip->dma1_size))
+		return -EINVAL;
 	if (pos + count < chip->dma1_size) {
 		if (copy_to_user(dst, runtime->dma_area + pos + 1, count))
 			return -EFAULT;
diff --git a/sound/pci/es1968.c b/sound/pci/es1968.c
index 1bf298d..20ee759 100644
--- a/sound/pci/es1968.c
+++ b/sound/pci/es1968.c
@@ -692,7 +692,8 @@
 /* no spinlock */
 static void __apu_set_register(struct es1968 *chip, u16 channel, u8 reg, u16 data)
 {
-	snd_assert(channel < NR_APUS, return);
+	if (snd_BUG_ON(channel >= NR_APUS))
+		return;
 #ifdef CONFIG_PM
 	chip->apu_map[channel][reg] = data;
 #endif
@@ -711,7 +712,8 @@
 
 static u16 __apu_get_register(struct es1968 *chip, u16 channel, u8 reg)
 {
-	snd_assert(channel < NR_APUS, return 0);
+	if (snd_BUG_ON(channel >= NR_APUS))
+		return 0;
 	reg |= (channel << 4);
 	apu_index_set(chip, reg);
 	return __maestro_read(chip, IDR0_DATA_PORT);
diff --git a/sound/pci/hda/hda_codec.c b/sound/pci/hda/hda_codec.c
index d2e1093..77fbcd4 100644
--- a/sound/pci/hda/hda_codec.c
+++ b/sound/pci/hda/hda_codec.c
@@ -211,7 +211,8 @@
 	unsigned int shift, num_elems, mask;
 	hda_nid_t prev_nid;
 
-	snd_assert(conn_list && max_conns > 0, return -EINVAL);
+	if (snd_BUG_ON(!conn_list || max_conns <= 0))
+		return -EINVAL;
 
 	parm = snd_hda_param_read(codec, nid, AC_PAR_CONNLIST_LEN);
 	if (parm & AC_CLIST_LONG) {
@@ -407,8 +408,10 @@
 		.dev_free = snd_hda_bus_dev_free,
 	};
 
-	snd_assert(temp, return -EINVAL);
-	snd_assert(temp->ops.command && temp->ops.get_response, return -EINVAL);
+	if (snd_BUG_ON(!temp))
+		return -EINVAL;
+	if (snd_BUG_ON(!temp->ops.command || !temp->ops.get_response))
+		return -EINVAL;
 
 	if (busp)
 		*busp = NULL;
@@ -588,8 +591,10 @@
 	char component[13];
 	int err;
 
-	snd_assert(bus, return -EINVAL);
-	snd_assert(codec_addr <= HDA_MAX_CODEC_ADDRESS, return -EINVAL);
+	if (snd_BUG_ON(!bus))
+		return -EINVAL;
+	if (snd_BUG_ON(codec_addr > HDA_MAX_CODEC_ADDRESS))
+		return -EINVAL;
 
 	if (bus->caddr_tbl[codec_addr]) {
 		snd_printk(KERN_ERR "hda_codec: "
@@ -2236,11 +2241,13 @@
 	if (info->ops.close == NULL)
 		info->ops.close = hda_pcm_default_open_close;
 	if (info->ops.prepare == NULL) {
-		snd_assert(info->nid, return -EINVAL);
+		if (snd_BUG_ON(!info->nid))
+			return -EINVAL;
 		info->ops.prepare = hda_pcm_default_prepare;
 	}
 	if (info->ops.cleanup == NULL) {
-		snd_assert(info->nid, return -EINVAL);
+		if (snd_BUG_ON(!info->nid))
+			return -EINVAL;
 		info->ops.cleanup = hda_pcm_default_cleanup;
 	}
 	return 0;
diff --git a/sound/pci/hda/hda_generic.c b/sound/pci/hda/hda_generic.c
index 59e4389..0ca3089 100644
--- a/sound/pci/hda/hda_generic.c
+++ b/sound/pci/hda/hda_generic.c
@@ -174,7 +174,8 @@
 	int i, nodes, err;
 	hda_nid_t nid;
 
-	snd_assert(spec, return -EINVAL);
+	if (snd_BUG_ON(!spec))
+		return -EINVAL;
 
 	spec->def_amp_out_caps = snd_hda_param_read(codec, codec->afg, AC_PAR_AMP_OUT_CAP);
 	spec->def_amp_in_caps = snd_hda_param_read(codec, codec->afg, AC_PAR_AMP_IN_CAP);
diff --git a/sound/pci/hda/hda_intel.c b/sound/pci/hda/hda_intel.c
index 1c53e33..b2bcd94 100644
--- a/sound/pci/hda/hda_intel.c
+++ b/sound/pci/hda/hda_intel.c
@@ -1646,7 +1646,8 @@
 	if (!cpcm->stream[0].substreams && !cpcm->stream[1].substreams)
 		return 0;
 
-	snd_assert(cpcm->name, return -EINVAL);
+	if (snd_BUG_ON(!cpcm->name))
+		return -EINVAL;
 
 	err = snd_pcm_new(chip->card, cpcm->name, cpcm->device,
 			  cpcm->stream[0].substreams,
diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
index 4bd2672..7e5422f 100644
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -2633,12 +2633,14 @@
 
 	info->name = spec->stream_name_analog;
 	if (spec->stream_analog_playback) {
-		snd_assert(spec->multiout.dac_nids, return -EINVAL);
+		if (snd_BUG_ON(!spec->multiout.dac_nids))
+			return -EINVAL;
 		info->stream[SNDRV_PCM_STREAM_PLAYBACK] = *(spec->stream_analog_playback);
 		info->stream[SNDRV_PCM_STREAM_PLAYBACK].nid = spec->multiout.dac_nids[0];
 	}
 	if (spec->stream_analog_capture) {
-		snd_assert(spec->adc_nids, return -EINVAL);
+		if (snd_BUG_ON(!spec->adc_nids))
+			return -EINVAL;
 		info->stream[SNDRV_PCM_STREAM_CAPTURE] = *(spec->stream_analog_capture);
 		info->stream[SNDRV_PCM_STREAM_CAPTURE].nid = spec->adc_nids[0];
 	}
diff --git a/sound/pci/ice1712/ak4xxx.c b/sound/pci/ice1712/ak4xxx.c
index dab31b2..03391da 100644
--- a/sound/pci/ice1712/ak4xxx.c
+++ b/sound/pci/ice1712/ak4xxx.c
@@ -59,7 +59,8 @@
 	struct snd_ak4xxx_private *priv = (void *)ak->private_value[0];
 	struct snd_ice1712 *ice = ak->private_data[0];
 
-	snd_assert(chip >= 0 && chip < 4, return);
+	if (snd_BUG_ON(chip < 0 || chip >= 4))
+		return;
 
 	tmp = snd_ice1712_gpio_read(ice);
 	tmp |= priv->add_flags;
diff --git a/sound/pci/ice1712/ews.c b/sound/pci/ice1712/ews.c
index 013fc4f..6fe35b8 100644
--- a/sound/pci/ice1712/ews.c
+++ b/sound/pci/ice1712/ews.c
@@ -149,7 +149,8 @@
 	struct ews_spec *spec = ice->spec;
 	unsigned char data, ndata;
 
-	snd_assert(chip_mask >= 0 && chip_mask <= 0x0f, return -EINVAL);
+	if (snd_BUG_ON(chip_mask < 0 || chip_mask > 0x0f))
+		return -EINVAL;
 	snd_i2c_lock(ice->i2c);
 	if (snd_i2c_readbytes(spec->i2cdevs[EWS_I2C_PCF2], &data, 1) != 1)
 		goto __error;
@@ -685,7 +686,8 @@
 	int channel = snd_ctl_get_ioffidx(kcontrol, &ucontrol->id);
 	unsigned char data;
 
-	snd_assert(channel >= 0 && channel <= 7, return 0);
+	if (snd_BUG_ON(channel < 0 || channel > 7))
+		return 0;
 	snd_i2c_lock(ice->i2c);
 	if (snd_i2c_readbytes(spec->i2cdevs[EWS_I2C_PCF1], &data, 1) != 1) {
 		snd_i2c_unlock(ice->i2c);
@@ -705,7 +707,8 @@
 	int channel = snd_ctl_get_ioffidx(kcontrol, &ucontrol->id);
 	unsigned char data, ndata;
 
-	snd_assert(channel >= 0 && channel <= 7, return 0);
+	if (snd_BUG_ON(channel < 0 || channel > 7))
+		return 0;
 	snd_i2c_lock(ice->i2c);
 	if (snd_i2c_readbytes(spec->i2cdevs[EWS_I2C_PCF1], &data, 1) != 1) {
 		snd_i2c_unlock(ice->i2c);
diff --git a/sound/pci/ice1712/ice1712.c b/sound/pci/ice1712/ice1712.c
index 29d449d..05ffab6 100644
--- a/sound/pci/ice1712/ice1712.c
+++ b/sound/pci/ice1712/ice1712.c
@@ -2416,7 +2416,8 @@
 	int err;
 	struct snd_kcontrol *kctl;
 
-	snd_assert(ice->pcm_pro != NULL, return -EIO);
+	if (snd_BUG_ON(!ice->pcm_pro))
+		return -EIO;
 	err = snd_ctl_add(ice->card, kctl = snd_ctl_new1(&snd_ice1712_spdif_default, ice));
 	if (err < 0)
 		return err;
diff --git a/sound/pci/ice1712/ice1724.c b/sound/pci/ice1712/ice1724.c
index e596d77..60119d2 100644
--- a/sound/pci/ice1712/ice1724.c
+++ b/sound/pci/ice1712/ice1724.c
@@ -2250,7 +2250,8 @@
 	int err;
 	struct snd_kcontrol *kctl;
 
-	snd_assert(ice->pcm != NULL, return -EIO);
+	if (snd_BUG_ON(!ice->pcm))
+		return -EIO;
 
 	err = snd_ctl_add(ice->card, snd_ctl_new1(&snd_vt1724_mixer_pro_spdif_route, ice));
 	if (err < 0)
diff --git a/sound/pci/ice1712/juli.c b/sound/pci/ice1712/juli.c
index b4e0c16..21ff4de 100644
--- a/sound/pci/ice1712/juli.c
+++ b/sound/pci/ice1712/juli.c
@@ -208,7 +208,8 @@
 {
 	struct snd_ice1712 *ice = ak->private_data[0];
 	 
-	snd_assert(chip == 0, return);
+	if (snd_BUG_ON(chip))
+		return;
 	snd_vt1724_write_i2c(ice, AK4358_ADDR, addr, data);
 }
 
diff --git a/sound/pci/intel8x0.c b/sound/pci/intel8x0.c
index 048d99e..7876099 100644
--- a/sound/pci/intel8x0.c
+++ b/sound/pci/intel8x0.c
@@ -2132,8 +2132,8 @@
 				snd_intel8x0_codec_read_test(chip, codecs);
 				chip->ac97_sdin[codecs] =
 					igetbyte(chip, ICHREG(SDM)) & ICH_LDI_MASK;
-				snd_assert(chip->ac97_sdin[codecs] < 3,
-					   chip->ac97_sdin[codecs] = 0);
+				if (snd_BUG_ON(chip->ac97_sdin[codecs] >= 3))
+					chip->ac97_sdin[codecs] = 0;
 			} else
 				chip->ac97_sdin[codecs] = i;
 			codecs++;
diff --git a/sound/pci/intel8x0m.c b/sound/pci/intel8x0m.c
index faf674e..93449e4 100644
--- a/sound/pci/intel8x0m.c
+++ b/sound/pci/intel8x0m.c
@@ -306,7 +306,8 @@
 	static unsigned int codec_bit[3] = {
 		ICH_PCR, ICH_SCR, ICH_TCR
 	};
-	snd_assert(codec < 3, return ICH_PCR);
+	if (snd_BUG_ON(codec >= 3))
+		return ICH_PCR;
 	return codec_bit[codec];
 }
 
diff --git a/sound/pci/korg1212/korg1212.c b/sound/pci/korg1212/korg1212.c
index 4a44c0f..5f8006b 100644
--- a/sound/pci/korg1212/korg1212.c
+++ b/sound/pci/korg1212/korg1212.c
@@ -1281,7 +1281,8 @@
 
 	K1212_DEBUG_PRINTK_VERBOSE("K1212_DEBUG: snd_korg1212_silence pos=%d offset=%d size=%d count=%d\n",
 				   pos, offset, size, count);
-	snd_assert(pos + count <= K1212_MAX_SAMPLES, return -EINVAL);
+	if (snd_BUG_ON(pos + count > K1212_MAX_SAMPLES))
+		return -EINVAL;
 
 	for (i=0; i < count; i++) {
 #if K1212_DEBUG_LEVEL > 0
@@ -1306,7 +1307,8 @@
 
 	K1212_DEBUG_PRINTK_VERBOSE("K1212_DEBUG: snd_korg1212_copy_to pos=%d offset=%d size=%d\n",
 				   pos, offset, size);
-	snd_assert(pos + count <= K1212_MAX_SAMPLES, return -EINVAL);
+	if (snd_BUG_ON(pos + count > K1212_MAX_SAMPLES))
+		return -EINVAL;
 
 	for (i=0; i < count; i++) {
 #if K1212_DEBUG_LEVEL > 0
@@ -1336,7 +1338,8 @@
 	K1212_DEBUG_PRINTK_VERBOSE("K1212_DEBUG: snd_korg1212_copy_from pos=%d offset=%d size=%d count=%d\n",
 				   pos, offset, size, count);
 
-	snd_assert(pos + count <= K1212_MAX_SAMPLES, return -EINVAL);
+	if (snd_BUG_ON(pos + count > K1212_MAX_SAMPLES))
+		return -EINVAL;
 
 	for (i=0; i < count; i++) {
 #if K1212_DEBUG_LEVEL > 0
diff --git a/sound/pci/maestro3.c b/sound/pci/maestro3.c
index 0037be7..9ff3f9e 100644
--- a/sound/pci/maestro3.c
+++ b/sound/pci/maestro3.c
@@ -1175,7 +1175,8 @@
 	struct m3_dma *s = subs->runtime->private_data;
 	int err = -EINVAL;
 
-	snd_assert(s != NULL, return -ENXIO);
+	if (snd_BUG_ON(!s))
+		return -ENXIO;
 
 	spin_lock(&chip->reg_lock);
 	switch (cmd) {
@@ -1487,7 +1488,8 @@
 	struct snd_pcm_runtime *runtime = subs->runtime;
 	struct m3_dma *s = runtime->private_data;
 
-	snd_assert(s != NULL, return -ENXIO);
+	if (snd_BUG_ON(!s))
+		return -ENXIO;
 
 	if (runtime->format != SNDRV_PCM_FORMAT_U8 &&
 	    runtime->format != SNDRV_PCM_FORMAT_S16_LE)
@@ -1546,7 +1548,9 @@
 	struct snd_m3 *chip = snd_pcm_substream_chip(subs);
 	unsigned int ptr;
 	struct m3_dma *s = subs->runtime->private_data;
-	snd_assert(s != NULL, return 0);
+
+	if (snd_BUG_ON(!s))
+		return 0;
 
 	spin_lock(&chip->reg_lock);
 	ptr = snd_m3_get_pointer(chip, s, subs);
diff --git a/sound/pci/mixart/mixart.c b/sound/pci/mixart/mixart.c
index 3dd0c79..2d0dce6 100644
--- a/sound/pci/mixart/mixart.c
+++ b/sound/pci/mixart/mixart.c
@@ -708,7 +708,7 @@
 		pcm_number = MIXART_PCM_ANALOG;
 		runtime->hw = snd_mixart_analog_caps;
 	} else {
-		snd_assert ( pcm == chip->pcm_dig ); 
+		snd_BUG_ON(pcm != chip->pcm_dig);
 		pcm_number = MIXART_PCM_DIGITAL;
 		runtime->hw = snd_mixart_digital_caps;
 	}
@@ -783,7 +783,7 @@
 		pcm_number = MIXART_PCM_ANALOG;
 		runtime->hw = snd_mixart_analog_caps;
 	} else {
-		snd_assert ( pcm == chip->pcm_dig ); 
+		snd_BUG_ON(pcm != chip->pcm_dig);
 		pcm_number = MIXART_PCM_DIGITAL;
 		runtime->hw = snd_mixart_digital_caps;
 	}
diff --git a/sound/pci/mixart/mixart_core.c b/sound/pci/mixart/mixart_core.c
index 785085e..b9a06c2 100644
--- a/sound/pci/mixart/mixart_core.c
+++ b/sound/pci/mixart/mixart_core.c
@@ -56,8 +56,10 @@
 	if (tailptr == headptr)
 		return 0; /* no message posted */
 
-	snd_assert( tailptr >= MSG_OUTBOUND_POST_STACK, return 0); /* error */
-	snd_assert( tailptr < (MSG_OUTBOUND_POST_STACK+MSG_BOUND_STACK_SIZE), return 0); /* error */
+	if (tailptr < MSG_OUTBOUND_POST_STACK)
+		return 0; /* error */
+	if (tailptr >= MSG_OUTBOUND_POST_STACK + MSG_BOUND_STACK_SIZE)
+		return 0; /* error */
 
 	*msg_frame = readl_be(MIXART_MEM(mgr, tailptr));
 
@@ -149,7 +151,8 @@
 	u32 msg_frame_address;
 	int err, i;
 
-	snd_assert(msg->size % 4 == 0, return -EINVAL);
+	if (snd_BUG_ON(msg->size % 4))
+		return -EINVAL;
 
 	err = 0;
 
@@ -289,9 +292,12 @@
 	wait_queue_t wait;
 	long timeout;
 
-	snd_assert(notif_event != 0, return -EINVAL);
-	snd_assert((notif_event & MSG_TYPE_MASK) == MSG_TYPE_NOTIFY, return -EINVAL);
-	snd_assert((notif_event & MSG_CANCEL_NOTIFY_MASK) == 0, return -EINVAL);
+	if (snd_BUG_ON(!notif_event))
+		return -EINVAL;
+	if (snd_BUG_ON((notif_event & MSG_TYPE_MASK) != MSG_TYPE_NOTIFY))
+		return -EINVAL;
+	if (snd_BUG_ON(notif_event & MSG_CANCEL_NOTIFY_MASK))
+		return -EINVAL;
 
 	mutex_lock(&mgr->msg_mutex);
 
diff --git a/sound/pci/mixart/mixart_hwdep.c b/sound/pci/mixart/mixart_hwdep.c
index f986031..3782b52 100644
--- a/sound/pci/mixart/mixart_hwdep.c
+++ b/sound/pci/mixart/mixart_hwdep.c
@@ -288,7 +288,9 @@
 		return -EINVAL;
 	}
 
-	snd_assert(phys_io.nb_uid >= (MIXART_MAX_CARDS * 2),  return -EINVAL); /* min 2 phys io per card (analog in + analog out) */
+	/* min 2 phys io per card (analog in + analog out) */
+	if (phys_io.nb_uid < MIXART_MAX_CARDS * 2)
+		return -EINVAL;
 
 	for(k=0; k<mgr->num_cards; k++) {
 		mgr->chip[k]->uid_in_analog_physio = phys_io.uid[k];
@@ -363,8 +365,10 @@
 		}
 
 		/* check xilinx validity */
-		snd_assert(((u32*)(dsp->data))[0]==0xFFFFFFFF, return -EINVAL);
-		snd_assert(dsp->size % 4 == 0, return -EINVAL);
+		if (((u32*)(dsp->data))[0] == 0xffffffff)
+			return -EINVAL;
+		if (dsp->size % 4)
+			return -EINVAL;
 
 		/* set xilinx status to copying */
 		writel_be( 1, MIXART_MEM( mgr, MIXART_PSEUDOREG_MXLX_STATUS_OFFSET ));
@@ -462,8 +466,10 @@
 		}
  
 		/* check daughterboard xilinx validity */
-		snd_assert(((u32*)(dsp->data))[0]==0xFFFFFFFF, return -EINVAL);
-		snd_assert(dsp->size % 4 == 0, return -EINVAL);
+		if (((u32*)(dsp->data))[0] == 0xffffffff)
+			return -EINVAL;
+		if (dsp->size % 4)
+			return -EINVAL;
 
 		/* inform mixart about the size of the file */
 		writel_be( dsp->size, MIXART_MEM( mgr, MIXART_PSEUDOREG_DXLX_SIZE_OFFSET ));
@@ -480,7 +486,8 @@
 
 		/* get the address where to write the file */
 		val = readl_be( MIXART_MEM( mgr, MIXART_PSEUDOREG_DXLX_BASE_ADDR_OFFSET ));
-		snd_assert(val != 0, return -EINVAL);
+		if (!val)
+			return -EINVAL;
 
 		/* copy daughterboard xilinx code */
 		memcpy_toio(  MIXART_MEM( mgr, val),  dsp->data,  dsp->size);
diff --git a/sound/pci/mixart/mixart_mixer.c b/sound/pci/mixart/mixart_mixer.c
index 6fdda1f..3ba6174 100644
--- a/sound/pci/mixart/mixart_mixer.c
+++ b/sound/pci/mixart/mixart_mixer.c
@@ -837,7 +837,7 @@
 		if(is_aes)	stored_volume = chip->digital_capture_volume[1];	/* AES capture */
 		else		stored_volume = chip->digital_capture_volume[0];	/* analog capture */
 	} else {
-		snd_assert ( idx < MIXART_PLAYBACK_STREAMS ); 
+		snd_BUG_ON(idx >= MIXART_PLAYBACK_STREAMS);
 		if(is_aes)	stored_volume = chip->digital_playback_volume[MIXART_PLAYBACK_STREAMS + idx]; /* AES playback */
 		else		stored_volume = chip->digital_playback_volume[idx];	/* analog playback */
 	}
@@ -863,7 +863,7 @@
 		else		/* analog capture */
 			stored_volume = chip->digital_capture_volume[0];
 	} else {
-		snd_assert ( idx < MIXART_PLAYBACK_STREAMS ); 
+		snd_BUG_ON(idx >= MIXART_PLAYBACK_STREAMS);
 		if (is_aes)	/* AES playback */
 			stored_volume = chip->digital_playback_volume[MIXART_PLAYBACK_STREAMS + idx];
 		else		/* analog playback */
@@ -909,7 +909,7 @@
 {
 	struct snd_mixart *chip = snd_kcontrol_chip(kcontrol);
 	int idx = snd_ctl_get_ioffidx(kcontrol, &ucontrol->id); /* index */
-	snd_assert ( idx < MIXART_PLAYBACK_STREAMS ); 
+	snd_BUG_ON(idx >= MIXART_PLAYBACK_STREAMS);
 	mutex_lock(&chip->mgr->mixer_mutex);
 	if(kcontrol->private_value & MIXART_VOL_AES_MASK)	/* AES playback */
 		idx += MIXART_PLAYBACK_STREAMS;
@@ -926,7 +926,7 @@
 	int is_aes = kcontrol->private_value & MIXART_VOL_AES_MASK;
 	int idx = snd_ctl_get_ioffidx(kcontrol, &ucontrol->id); /* index */
 	int i, j;
-	snd_assert ( idx < MIXART_PLAYBACK_STREAMS ); 
+	snd_BUG_ON(idx >= MIXART_PLAYBACK_STREAMS);
 	mutex_lock(&chip->mgr->mixer_mutex);
 	j = idx;
 	if (is_aes)
diff --git a/sound/pci/nm256/nm256.c b/sound/pci/nm256/nm256.c
index 06d13e7..50c9f8a 100644
--- a/sound/pci/nm256/nm256.c
+++ b/sound/pci/nm256/nm256.c
@@ -562,7 +562,8 @@
 	struct nm256_stream *s = substream->runtime->private_data;
 	int err = 0;
 
-	snd_assert(s != NULL, return -ENXIO);
+	if (snd_BUG_ON(!s))
+		return -ENXIO;
 
 	spin_lock(&chip->reg_lock);
 	switch (cmd) {
@@ -599,7 +600,8 @@
 	struct nm256_stream *s = substream->runtime->private_data;
 	int err = 0;
 
-	snd_assert(s != NULL, return -ENXIO);
+	if (snd_BUG_ON(!s))
+		return -ENXIO;
 
 	spin_lock(&chip->reg_lock);
 	switch (cmd) {
@@ -635,7 +637,8 @@
 	struct snd_pcm_runtime *runtime = substream->runtime;
 	struct nm256_stream *s = runtime->private_data;
 
-	snd_assert(s, return -ENXIO);
+	if (snd_BUG_ON(!s))
+		return -ENXIO;
 	s->dma_size = frames_to_bytes(runtime, substream->runtime->buffer_size);
 	s->period_size = frames_to_bytes(runtime, substream->runtime->period_size);
 	s->periods = substream->runtime->periods;
@@ -660,7 +663,8 @@
 	struct nm256_stream *s = substream->runtime->private_data;
 	unsigned long curp;
 
-	snd_assert(s, return 0);
+	if (snd_BUG_ON(!s))
+		return 0;
 	curp = snd_nm256_readl(chip, NM_PBUFFER_CURRP) - (unsigned long)s->buf;
 	curp %= s->dma_size;
 	return bytes_to_frames(substream->runtime, curp);
@@ -673,7 +677,8 @@
 	struct nm256_stream *s = substream->runtime->private_data;
 	unsigned long curp;
 
-	snd_assert(s != NULL, return 0);
+	if (snd_BUG_ON(!s))
+		return 0;
 	curp = snd_nm256_readl(chip, NM_RBUFFER_CURRP) - (unsigned long)s->buf;
 	curp %= s->dma_size;	
 	return bytes_to_frames(substream->runtime, curp);
diff --git a/sound/pci/pcxhr/pcxhr.c b/sound/pci/pcxhr/pcxhr.c
index 2c7e253..0e06c6c 100644
--- a/sound/pci/pcxhr/pcxhr.c
+++ b/sound/pci/pcxhr/pcxhr.c
@@ -464,7 +464,8 @@
 	pcxhr_init_rmh(&rmh, CMD_UPDATE_R_BUFFERS);
 	pcxhr_set_pipe_cmd_params(&rmh, is_capture, stream->pipe->first_audio, stream_num, 0);
 
-	snd_assert(subs->runtime->dma_bytes < 0x200000);	/* max buffer size is 2 MByte */
+	/* max buffer size is 2 MByte */
+	snd_BUG_ON(subs->runtime->dma_bytes >= 0x200000);
 	rmh.cmd[1] = subs->runtime->dma_bytes * 8;		/* size in bits */
 	rmh.cmd[2] = subs->runtime->dma_addr >> 24;		/* most significant byte */
 	rmh.cmd[2] |= 1<<19;					/* this is a circular buffer */
@@ -1228,7 +1229,8 @@
 		return -ENOMEM;
 	}
 
-	snd_assert(pci_id->driver_data < PCI_ID_LAST, return -ENODEV);
+	if (snd_BUG_ON(pci_id->driver_data >= PCI_ID_LAST))
+		return -ENODEV;
 	card_name = pcxhr_board_params[pci_id->driver_data].board_name;
 	mgr->playback_chips = pcxhr_board_params[pci_id->driver_data].playback_chips;
 	mgr->capture_chips  = pcxhr_board_params[pci_id->driver_data].capture_chips;
diff --git a/sound/pci/pcxhr/pcxhr_core.c b/sound/pci/pcxhr/pcxhr_core.c
index 000e6fe..7143259 100644
--- a/sound/pci/pcxhr/pcxhr_core.c
+++ b/sound/pci/pcxhr/pcxhr_core.c
@@ -319,16 +319,20 @@
 	const unsigned char *data;
 	unsigned char dummy;
 	/* check the length of boot image */
-	snd_assert(dsp->size > 0, return -EINVAL);
-	snd_assert(dsp->size % 3 == 0, return -EINVAL);
-	snd_assert(dsp->data, return -EINVAL);
+	if (dsp->size <= 0)
+		return -EINVAL;
+	if (dsp->size % 3)
+		return -EINVAL;
+	if (snd_BUG_ON(!dsp->data))
+		return -EINVAL;
 	/* transfert data buffer from PC to DSP */
 	for (i = 0; i < dsp->size; i += 3) {
 		data = dsp->data + i;
 		if (i == 0) {
 			/* test data header consistency */
 			len = (unsigned int)((data[0]<<16) + (data[1]<<8) + data[2]);
-			snd_assert((len==0) || (dsp->size == (len+2)*3), return -EINVAL);
+			if (len && dsp->size != (len + 2) * 3)
+				return -EINVAL;
 		}
 		/* wait DSP ready for new transfer */
 		err = pcxhr_check_reg_bit(mgr, PCXHR_DSP_ISR, PCXHR_ISR_HI08_TRDY,
@@ -389,7 +393,8 @@
 	unsigned char dummy;
 
 	/* send the hostport address to the DSP (only the upper 24 bit !) */
-	snd_assert((physaddr & 0xff) == 0, return -EINVAL);
+	if (snd_BUG_ON(physaddr & 0xff))
+		return -EINVAL;
 	PCXHR_OUTPL(mgr, PCXHR_PLX_MBOX1, (physaddr >> 8));
 
 	err = pcxhr_send_it_dsp(mgr, PCXHR_IT_DOWNLOAD_BOOT, 0);
@@ -570,7 +575,8 @@
 	u32 data;
 	unsigned char reg;
 
-	snd_assert(rmh->cmd_len<PCXHR_SIZE_MAX_CMD, return -EINVAL);
+	if (snd_BUG_ON(rmh->cmd_len >= PCXHR_SIZE_MAX_CMD))
+		return -EINVAL;
 	err = pcxhr_send_it_dsp(mgr, PCXHR_IT_MESSAGE, 1);
 	if (err) {
 		snd_printk(KERN_ERR "pcxhr_send_message : ED_DSP_CRASHED\n");
@@ -677,7 +683,8 @@
  */
 void pcxhr_init_rmh(struct pcxhr_rmh *rmh, int cmd)
 {
-	snd_assert(cmd < CMD_LAST_INDEX, return);
+	if (snd_BUG_ON(cmd >= CMD_LAST_INDEX))
+		return;
 	rmh->cmd[0] = pcxhr_dsp_cmds[cmd].opcode;
 	rmh->cmd_len = 1;
 	rmh->stat_len = pcxhr_dsp_cmds[cmd].st_length;
@@ -690,17 +697,17 @@
 			       unsigned int param1, unsigned int param2,
 			       unsigned int param3)
 {
-	snd_assert(param1 <= MASK_FIRST_FIELD);
+	snd_BUG_ON(param1 > MASK_FIRST_FIELD);
 	if (capture)
 		rmh->cmd[0] |= 0x800;		/* COMMAND_RECORD_MASK */
 	if (param1)
 		rmh->cmd[0] |= (param1 << FIELD_SIZE);
 	if (param2) {
-		snd_assert(param2 <= MASK_FIRST_FIELD);
+		snd_BUG_ON(param2 > MASK_FIRST_FIELD);
 		rmh->cmd[0] |= param2;
 	}
 	if(param3) {
-		snd_assert(param3 <= MASK_DSP_WORD);
+		snd_BUG_ON(param3 > MASK_DSP_WORD);
 		rmh->cmd[1] = param3;
 		rmh->cmd_len = 2;
 	}
diff --git a/sound/pci/pcxhr/pcxhr_hwdep.c b/sound/pci/pcxhr/pcxhr_hwdep.c
index d2f0432..96640d9 100644
--- a/sound/pci/pcxhr/pcxhr_hwdep.c
+++ b/sound/pci/pcxhr/pcxhr_hwdep.c
@@ -65,15 +65,18 @@
 	if (err)
 		return err;
 	/* test 8 or 12 phys out */
-	snd_assert((rmh.stat[0] & MASK_FIRST_FIELD) == mgr->playback_chips*2,
-		   return -EINVAL);
+	if ((rmh.stat[0] & MASK_FIRST_FIELD) != mgr->playback_chips * 2)
+		return -EINVAL;
 	/* test 8 or 2 phys in */
-	snd_assert(((rmh.stat[0] >> (2*FIELD_SIZE)) & MASK_FIRST_FIELD) ==
-		   mgr->capture_chips * 2, return -EINVAL);
+	if (((rmh.stat[0] >> (2 * FIELD_SIZE)) & MASK_FIRST_FIELD) !=
+	    mgr->capture_chips * 2)
+		return -EINVAL;
 	/* test max nb substream per board */
-	snd_assert((rmh.stat[1] & 0x5F) >= card_streams, return -EINVAL);
+	if ((rmh.stat[1] & 0x5F) < card_streams)
+		return -EINVAL;
 	/* test max nb substream per pipe */
-	snd_assert(((rmh.stat[1]>>7)&0x5F) >= PCXHR_PLAYBACK_STREAMS, return -EINVAL);
+	if (((rmh.stat[1] >> 7) & 0x5F) < PCXHR_PLAYBACK_STREAMS)
+		return -EINVAL;
 
 	pcxhr_init_rmh(&rmh, CMD_VERSION);
 	/* firmware num for DSP */
diff --git a/sound/pci/riptide/riptide.c b/sound/pci/riptide/riptide.c
index 6a35962..124f9a2 100644
--- a/sound/pci/riptide/riptide.c
+++ b/sound/pci/riptide/riptide.c
@@ -865,7 +865,8 @@
 	struct riptideport *hwport;
 	struct cmdport *cmdport = NULL;
 
-	snd_assert(cif, return -EINVAL);
+	if (snd_BUG_ON(!cif))
+		return -EINVAL;
 
 	hwport = cif->hwport;
 	if (cif->errcnt > MAX_ERROR_COUNT) {
@@ -1490,7 +1491,8 @@
 	int err = 0;
 	snd_pcm_format_t format;
 
-	snd_assert(cif && data, return -EINVAL);
+	if (snd_BUG_ON(!cif || !data))
+		return -EINVAL;
 
 	snd_printdd("prepare id %d ch: %d f:0x%x r:%d\n", data->id,
 		    runtime->channels, runtime->format, runtime->rate);
@@ -1772,7 +1774,8 @@
 	union cmdret rptr = CMDRET_ZERO;
 	int i = 0;
 
-	snd_assert(cif, return);
+	if (snd_BUG_ON(!cif))
+		return;
 
 	snd_printdd("Write AC97 reg 0x%x 0x%x\n", reg, val);
 	do {
@@ -1790,7 +1793,8 @@
 	struct cmdif *cif = chip->cif;
 	union cmdret rptr = CMDRET_ZERO;
 
-	snd_assert(cif, return 0);
+	if (snd_BUG_ON(!cif))
+		return 0;
 
 	if (SEND_RACR(cif, reg, &rptr) != 0)
 		SEND_RACR(cif, reg, &rptr);
@@ -1804,7 +1808,8 @@
 	unsigned int device_id;
 	int err;
 
-	snd_assert(chip, return -EINVAL);
+	if (snd_BUG_ON(!chip))
+		return -EINVAL;
 
 	cif = chip->cif;
 	if (!cif) {
@@ -1836,7 +1841,8 @@
 {
 	struct cmdif *cif;
 
-	snd_assert(chip, return 0);
+	if (!chip)
+		return 0;
 
 	if ((cif = chip->cif)) {
 		SET_GRESET(cif->hwport);
diff --git a/sound/pci/rme9652/hdsp.c b/sound/pci/rme9652/hdsp.c
index 4d6fbb3..d723543 100644
--- a/sound/pci/rme9652/hdsp.c
+++ b/sound/pci/rme9652/hdsp.c
@@ -1036,7 +1036,7 @@
 	n = DDS_NUMERATOR;
 	div64_32(&n, rate, &r);
 	/* n should be less than 2^32 for being written to FREQ register */
-	snd_assert((n >> 32) == 0);
+	snd_BUG_ON(n >> 32);
 	/* HDSP_freqReg and HDSP_resetPointer are the same, so keep the DDS
 	   value to write it after a reset */
 	hdsp->dds_value = n;
@@ -3043,7 +3043,7 @@
 	struct hdsp *hdsp = snd_kcontrol_chip(kcontrol);
 
 	offset = ucontrol->id.index - 1;
-	snd_assert(offset >= 0);
+	snd_BUG_ON(offset < 0);
 
 	switch (hdsp->io_type) {
 	case Digiface:
@@ -3767,7 +3767,8 @@
 {
 	int mapped_channel;
 
-        snd_assert(channel >= 0 && channel < hdsp->max_channels, return NULL);
+        if (snd_BUG_ON(channel < 0 || channel >= hdsp->max_channels))
+		return NULL;
         
 	if ((mapped_channel = hdsp->channel_map[channel]) < 0)
 		return NULL;
@@ -3784,10 +3785,12 @@
 	struct hdsp *hdsp = snd_pcm_substream_chip(substream);
 	char *channel_buf;
 
-	snd_assert(pos + count <= HDSP_CHANNEL_BUFFER_BYTES / 4, return -EINVAL);
+	if (snd_BUG_ON(pos + count > HDSP_CHANNEL_BUFFER_BYTES / 4))
+		return -EINVAL;
 
 	channel_buf = hdsp_channel_buffer_location (hdsp, substream->pstr->stream, channel);
-	snd_assert(channel_buf != NULL, return -EIO);
+	if (snd_BUG_ON(!channel_buf))
+		return -EIO;
 	if (copy_from_user(channel_buf + pos * 4, src, count * 4))
 		return -EFAULT;
 	return count;
@@ -3799,10 +3802,12 @@
 	struct hdsp *hdsp = snd_pcm_substream_chip(substream);
 	char *channel_buf;
 
-	snd_assert(pos + count <= HDSP_CHANNEL_BUFFER_BYTES / 4, return -EINVAL);
+	if (snd_BUG_ON(pos + count > HDSP_CHANNEL_BUFFER_BYTES / 4))
+		return -EINVAL;
 
 	channel_buf = hdsp_channel_buffer_location (hdsp, substream->pstr->stream, channel);
-	snd_assert(channel_buf != NULL, return -EIO);
+	if (snd_BUG_ON(!channel_buf))
+		return -EIO;
 	if (copy_to_user(dst, channel_buf + pos * 4, count * 4))
 		return -EFAULT;
 	return count;
@@ -3815,7 +3820,8 @@
 	char *channel_buf;
 
 	channel_buf = hdsp_channel_buffer_location (hdsp, substream->pstr->stream, channel);
-	snd_assert(channel_buf != NULL, return -EIO);
+	if (snd_BUG_ON(!channel_buf))
+		return -EIO;
 	memset(channel_buf + pos * 4, 0, count * 4);
 	return count;
 }
@@ -3927,7 +3933,8 @@
 	struct hdsp *hdsp = snd_pcm_substream_chip(substream);
 	int mapped_channel;
 
-	snd_assert(info->channel < hdsp->max_channels, return -EINVAL);
+	if (snd_BUG_ON(info->channel >= hdsp->max_channels))
+		return -EINVAL;
 
 	if ((mapped_channel = hdsp->channel_map[info->channel]) < 0)
 		return -EINVAL;
diff --git a/sound/pci/rme9652/hdspm.c b/sound/pci/rme9652/hdspm.c
index ab423bc..83c92e6 100644
--- a/sound/pci/rme9652/hdspm.c
+++ b/sound/pci/rme9652/hdspm.c
@@ -845,7 +845,7 @@
 	n = 110100480000000ULL;    /* Value checked for AES32 and MADI */
 	div64_32(&n, rate, &r);
 	/* n should be less than 2^32 for being written to FREQ register */
-	snd_assert((n >> 32) == 0);
+	snd_BUG_ON(n >> 32);
 	hdspm_write(hdspm, HDSPM_freqReg, (u32)n);
 }
 
@@ -2617,8 +2617,8 @@
 
 	channel = ucontrol->id.index - 1;
 
-	snd_assert(channel >= 0
-		   || channel < HDSPM_MAX_CHANNELS, return -EINVAL);
+	if (snd_BUG_ON(channel < 0 || channel >= HDSPM_MAX_CHANNELS))
+		return -EINVAL;
 
 	mapped_channel = hdspm->channel_map[channel];
 	if (mapped_channel < 0)
@@ -2652,8 +2652,8 @@
 
 	channel = ucontrol->id.index - 1;
 
-	snd_assert(channel >= 0
-		   || channel < HDSPM_MAX_CHANNELS, return -EINVAL);
+	if (snd_BUG_ON(channel < 0 || channel >= HDSPM_MAX_CHANNELS))
+		return -EINVAL;
 
 	mapped_channel = hdspm->channel_map[channel];
 	if (mapped_channel < 0)
@@ -3496,8 +3496,8 @@
 {
 	int mapped_channel;
 
-	snd_assert(channel >= 0
-		   || channel < HDSPM_MAX_CHANNELS, return NULL);
+	if (snd_BUG_ON(channel < 0 || channel >= HDSPM_MAX_CHANNELS))
+		return NULL;
 
 	mapped_channel = hdspm->channel_map[channel];
 	if (mapped_channel < 0)
@@ -3520,14 +3520,15 @@
 	struct hdspm *hdspm = snd_pcm_substream_chip(substream);
 	char *channel_buf;
 
-	snd_assert(pos + count <= HDSPM_CHANNEL_BUFFER_BYTES / 4,
-		   return -EINVAL);
+	if (snd_BUG_ON(pos + count > HDSPM_CHANNEL_BUFFER_BYTES / 4))
+		return -EINVAL;
 
 	channel_buf =
 		hdspm_channel_buffer_location(hdspm, substream->pstr->stream,
 					      channel);
 
-	snd_assert(channel_buf != NULL, return -EIO);
+	if (snd_BUG_ON(!channel_buf))
+		return -EIO;
 
 	return copy_from_user(channel_buf + pos * 4, src, count * 4);
 }
@@ -3539,13 +3540,14 @@
 	struct hdspm *hdspm = snd_pcm_substream_chip(substream);
 	char *channel_buf;
 
-	snd_assert(pos + count <= HDSPM_CHANNEL_BUFFER_BYTES / 4,
-		   return -EINVAL);
+	if (snd_BUG_ON(pos + count > HDSPM_CHANNEL_BUFFER_BYTES / 4))
+		return -EINVAL;
 
 	channel_buf =
 		hdspm_channel_buffer_location(hdspm, substream->pstr->stream,
 					      channel);
-	snd_assert(channel_buf != NULL, return -EIO);
+	if (snd_BUG_ON(!channel_buf))
+		return -EIO;
 	return copy_to_user(dst, channel_buf + pos * 4, count * 4);
 }
 
@@ -3559,7 +3561,8 @@
 	channel_buf =
 		hdspm_channel_buffer_location(hdspm, substream->pstr->stream,
 					      channel);
-	snd_assert(channel_buf != NULL, return -EIO);
+	if (snd_BUG_ON(!channel_buf))
+		return -EIO;
 	memset(channel_buf + pos * 4, 0, count * 4);
 	return 0;
 }
@@ -3744,7 +3747,8 @@
 	struct hdspm *hdspm = snd_pcm_substream_chip(substream);
 	int mapped_channel;
 
-	snd_assert(info->channel < HDSPM_MAX_CHANNELS, return -EINVAL);
+	if (snd_BUG_ON(info->channel >= HDSPM_MAX_CHANNELS))
+		return -EINVAL;
 
 	mapped_channel = hdspm->channel_map[info->channel];
 	if (mapped_channel < 0)
diff --git a/sound/pci/rme9652/rme9652.c b/sound/pci/rme9652/rme9652.c
index a123f0e..2570907 100644
--- a/sound/pci/rme9652/rme9652.c
+++ b/sound/pci/rme9652/rme9652.c
@@ -595,8 +595,6 @@
 	} else {
 		int mapped_channel;
 
-		snd_assert(channel == RME9652_NCHANNELS, return);
-
 		mapped_channel = rme9652->channel_map[channel];
 
 		if (enable) {
@@ -1893,7 +1891,8 @@
 {
 	int mapped_channel;
 
-        snd_assert(channel >= 0 || channel < RME9652_NCHANNELS, return NULL);
+	if (snd_BUG_ON(channel < 0 || channel >= RME9652_NCHANNELS))
+		return NULL;
         
 	if ((mapped_channel = rme9652->channel_map[channel]) < 0) {
 		return NULL;
@@ -1914,12 +1913,14 @@
 	struct snd_rme9652 *rme9652 = snd_pcm_substream_chip(substream);
 	char *channel_buf;
 
-	snd_assert(pos + count <= RME9652_CHANNEL_BUFFER_BYTES / 4, return -EINVAL);
+	if (snd_BUG_ON(pos + count > RME9652_CHANNEL_BUFFER_BYTES / 4))
+		return -EINVAL;
 
 	channel_buf = rme9652_channel_buffer_location (rme9652,
 						       substream->pstr->stream,
 						       channel);
-	snd_assert(channel_buf != NULL, return -EIO);
+	if (snd_BUG_ON(!channel_buf))
+		return -EIO;
 	if (copy_from_user(channel_buf + pos * 4, src, count * 4))
 		return -EFAULT;
 	return count;
@@ -1931,12 +1932,14 @@
 	struct snd_rme9652 *rme9652 = snd_pcm_substream_chip(substream);
 	char *channel_buf;
 
-	snd_assert(pos + count <= RME9652_CHANNEL_BUFFER_BYTES / 4, return -EINVAL);
+	if (snd_BUG_ON(pos + count > RME9652_CHANNEL_BUFFER_BYTES / 4))
+		return -EINVAL;
 
 	channel_buf = rme9652_channel_buffer_location (rme9652,
 						       substream->pstr->stream,
 						       channel);
-	snd_assert(channel_buf != NULL, return -EIO);
+	if (snd_BUG_ON(!channel_buf))
+		return -EIO;
 	if (copy_to_user(dst, channel_buf + pos * 4, count * 4))
 		return -EFAULT;
 	return count;
@@ -1951,7 +1954,8 @@
 	channel_buf = rme9652_channel_buffer_location (rme9652,
 						       substream->pstr->stream,
 						       channel);
-	snd_assert(channel_buf != NULL, return -EIO);
+	if (snd_BUG_ON(!channel_buf))
+		return -EIO;
 	memset(channel_buf + pos * 4, 0, count * 4);
 	return count;
 }
@@ -2053,7 +2057,8 @@
 	struct snd_rme9652 *rme9652 = snd_pcm_substream_chip(substream);
 	int chn;
 
-	snd_assert(info->channel < RME9652_NCHANNELS, return -EINVAL);
+	if (snd_BUG_ON(info->channel >= RME9652_NCHANNELS))
+		return -EINVAL;
 
 	if ((chn = rme9652->channel_map[info->channel]) < 0) {
 		return -EINVAL;
diff --git a/sound/pci/sonicvibes.c b/sound/pci/sonicvibes.c
index 0d3d305..cd408b8 100644
--- a/sound/pci/sonicvibes.c
+++ b/sound/pci/sonicvibes.c
@@ -534,8 +534,8 @@
 			params->rate_den = 1;
 		} else {
 			snd_sonicvibes_pll(rate, &r, &m, &n);
-			snd_assert((SV_REFFREQUENCY % 16) == 0, return -EINVAL);
-			snd_assert((SV_ADCMULT % 512) == 0, return -EINVAL);
+			snd_BUG_ON(SV_REFFREQUENCY % 16);
+			snd_BUG_ON(SV_ADCMULT % 512);
 			params->rate_num = (SV_REFFREQUENCY/16) * (n+2) * r;
 			params->rate_den = (SV_ADCMULT/512) * (m+2);
 		}
@@ -849,7 +849,8 @@
 
 	if ((err = snd_pcm_new(sonic->card, "s3_86c617", device, 1, 1, &pcm)) < 0)
 		return err;
-	snd_assert(pcm != NULL, return -EINVAL);
+	if (snd_BUG_ON(!pcm))
+		return -EINVAL;
 
 	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_sonicvibes_playback_ops);
 	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_sonicvibes_capture_ops);
@@ -1089,7 +1090,8 @@
 	unsigned int idx;
 	int err;
 
-	snd_assert(sonic != NULL && sonic->card != NULL, return -EINVAL);
+	if (snd_BUG_ON(!sonic || !sonic->card))
+		return -EINVAL;
 	card = sonic->card;
 	strcpy(card->mixername, "S3 SonicVibes");
 
diff --git a/sound/pci/trident/trident_main.c b/sound/pci/trident/trident_main.c
index a69b420..c612b43 100644
--- a/sound/pci/trident/trident_main.c
+++ b/sound/pci/trident/trident_main.c
@@ -2931,7 +2931,8 @@
 {
 	struct snd_trident_pcm_mixer *tmix;
 
-	snd_assert(trident != NULL && voice != NULL && substream != NULL, return -EINVAL);
+	if (snd_BUG_ON(!trident || !voice || !substream))
+		return -EINVAL;
 	tmix = &trident->pcm_mixer[substream->number];
 	tmix->voice = voice;
 	tmix->vol = T4D_DEFAULT_PCM_VOL;
@@ -2946,7 +2947,8 @@
 {
 	struct snd_trident_pcm_mixer *tmix;
 
-	snd_assert(trident != NULL && substream != NULL, return -EINVAL);
+	if (snd_BUG_ON(!trident || !substream))
+		return -EINVAL;
 	tmix = &trident->pcm_mixer[substream->number];
 	tmix->voice = NULL;
 	snd_trident_notify_pcm_change(trident, tmix, substream->number, 0);
@@ -3131,7 +3133,8 @@
 {
 	struct snd_trident *chip = gameport_get_port_data(gameport);
 
-	snd_assert(chip, return 0);
+	if (snd_BUG_ON(!chip))
+		return 0;
 	return inb(TRID_REG(chip, GAMEPORT_LEGACY));
 }
 
@@ -3139,7 +3142,8 @@
 {
 	struct snd_trident *chip = gameport_get_port_data(gameport);
 
-	snd_assert(chip, return);
+	if (snd_BUG_ON(!chip))
+		return;
 	outb(0xff, TRID_REG(chip, GAMEPORT_LEGACY));
 }
 
@@ -3148,7 +3152,8 @@
 	struct snd_trident *chip = gameport_get_port_data(gameport);
 	int i;
 
-	snd_assert(chip, return 0);
+	if (snd_BUG_ON(!chip))
+		return 0;
 
 	*buttons = (~inb(TRID_REG(chip, GAMEPORT_LEGACY)) >> 4) & 0xf;
 
@@ -3164,7 +3169,8 @@
 {
 	struct snd_trident *chip = gameport_get_port_data(gameport);
 
-	snd_assert(chip, return 0);
+	if (snd_BUG_ON(!chip))
+		return 0;
 
 	switch (mode) {
 		case GAMEPORT_MODE_COOKED:
@@ -3891,8 +3897,8 @@
 {
 	unsigned int i, val, mask[2] = { 0, 0 };
 
-	snd_assert(v_min <= 63, return);
-	snd_assert(v_max <= 63, return);
+	if (snd_BUG_ON(v_min > 63 || v_max > 63))
+		return;
 	for (i = v_min; i <= v_max; i++)
 		mask[i >> 5] |= 1 << (i & 0x1f);
 	if (mask[0]) {
diff --git a/sound/pci/trident/trident_memory.c b/sound/pci/trident/trident_memory.c
index 3fd7f1b..2fe3b1f 100644
--- a/sound/pci/trident/trident_memory.c
+++ b/sound/pci/trident/trident_memory.c
@@ -196,9 +196,13 @@
 	int idx, page;
 	struct snd_sg_buf *sgbuf = snd_pcm_substream_sgbuf(substream);
 
-	snd_assert(runtime->dma_bytes > 0 && runtime->dma_bytes <= SNDRV_TRIDENT_MAX_PAGES * SNDRV_TRIDENT_PAGE_SIZE, return NULL);
+	if (snd_BUG_ON(runtime->dma_bytes <= 0 ||
+		       runtime->dma_bytes > SNDRV_TRIDENT_MAX_PAGES *
+					SNDRV_TRIDENT_PAGE_SIZE))
+		return NULL;
 	hdr = trident->tlb.memhdr;
-	snd_assert(hdr != NULL, return NULL);
+	if (snd_BUG_ON(!hdr))
+		return NULL;
 
 	
 
@@ -245,9 +249,13 @@
 	dma_addr_t addr;
 	unsigned long ptr;
 
-	snd_assert(runtime->dma_bytes> 0 && runtime->dma_bytes <= SNDRV_TRIDENT_MAX_PAGES * SNDRV_TRIDENT_PAGE_SIZE, return NULL);
+	if (snd_BUG_ON(runtime->dma_bytes <= 0 ||
+		       runtime->dma_bytes > SNDRV_TRIDENT_MAX_PAGES *
+					SNDRV_TRIDENT_PAGE_SIZE))
+		return NULL;
 	hdr = trident->tlb.memhdr;
-	snd_assert(hdr != NULL, return NULL);
+	if (snd_BUG_ON(!hdr))
+		return NULL;
 
 	mutex_lock(&hdr->block_mutex);
 	blk = search_empty(hdr, runtime->dma_bytes);
@@ -279,8 +287,8 @@
 snd_trident_alloc_pages(struct snd_trident *trident,
 			struct snd_pcm_substream *substream)
 {
-	snd_assert(trident != NULL, return NULL);
-	snd_assert(substream != NULL, return NULL);
+	if (snd_BUG_ON(!trident || !substream))
+		return NULL;
 	if (substream->dma_buffer.dev.type == SNDRV_DMA_TYPE_DEV_SG)
 		return snd_trident_alloc_sg_pages(trident, substream);
 	else
@@ -297,8 +305,8 @@
 	struct snd_util_memhdr *hdr;
 	int page;
 
-	snd_assert(trident != NULL, return -EINVAL);
-	snd_assert(blk != NULL, return -EINVAL);
+	if (snd_BUG_ON(!trident || !blk))
+		return -EINVAL;
 
 	hdr = trident->tlb.memhdr;
 	mutex_lock(&hdr->block_mutex);
diff --git a/sound/pci/via82xx.c b/sound/pci/via82xx.c
index 6781be9..84ea35d 100644
--- a/sound/pci/via82xx.c
+++ b/sound/pci/via82xx.c
@@ -824,7 +824,8 @@
 	struct viadev *viadev = substream->runtime->private_data;
 	unsigned int idx, ptr, count, res;
 
-	snd_assert(viadev->tbl_entries, return 0);
+	if (snd_BUG_ON(!viadev->tbl_entries))
+		return 0;
 	if (!(inb(VIADEV_REG(viadev, OFFSET_STATUS)) & VIA_REG_STAT_ACTIVE))
 		return 0;
 
@@ -855,7 +856,8 @@
 	unsigned int idx, count, res;
 	int status;
 	
-	snd_assert(viadev->tbl_entries, return 0);
+	if (snd_BUG_ON(!viadev->tbl_entries))
+		return 0;
 
 	spin_lock(&chip->reg_lock);
 	count = inl(VIADEV_REG(viadev, OFFSET_CURR_COUNT));
@@ -1037,7 +1039,7 @@
 	else
 		rbits = (0x100000 / 48000) * runtime->rate +
 			((0x100000 % 48000) * runtime->rate) / 48000;
-	snd_assert((rbits & ~0xfffff) == 0, return -EINVAL);
+	snd_BUG_ON(rbits & ~0xfffff);
 	snd_via82xx_channel_reset(chip, viadev);
 	snd_via82xx_set_table_ptr(chip, viadev);
 	outb(chip->playback_volume[viadev->reg_offset / 0x10][0],
diff --git a/sound/pci/via82xx_modem.c b/sound/pci/via82xx_modem.c
index 31f64ee..640c338 100644
--- a/sound/pci/via82xx_modem.c
+++ b/sound/pci/via82xx_modem.c
@@ -612,7 +612,8 @@
 	struct viadev *viadev = substream->runtime->private_data;
 	unsigned int idx, ptr, count, res;
 
-	snd_assert(viadev->tbl_entries, return 0);
+	if (snd_BUG_ON(!viadev->tbl_entries))
+		return 0;
 	if (!(inb(VIADEV_REG(viadev, OFFSET_STATUS)) & VIA_REG_STAT_ACTIVE))
 		return 0;
 
diff --git a/sound/pci/vx222/vx222_ops.c b/sound/pci/vx222/vx222_ops.c
index 631f3a6..7e87f39 100644
--- a/sound/pci/vx222/vx222_ops.c
+++ b/sound/pci/vx222/vx222_ops.c
@@ -253,7 +253,8 @@
 	int offset = pipe->hw_ptr;
 	u32 *addr = (u32 *)(runtime->dma_area + offset);
 
-	snd_assert(count % 4 == 0, return);
+	if (snd_BUG_ON(count % 4))
+		return;
 
 	vx2_setup_pseudo_dma(chip, 1);
 
@@ -291,7 +292,8 @@
 	u32 *addr = (u32 *)(runtime->dma_area + offset);
 	unsigned long port = vx2_reg_addr(chip, VX_DMA);
 
-	snd_assert(count % 4 == 0, return);
+	if (snd_BUG_ON(count % 4))
+		return;
 
 	vx2_setup_pseudo_dma(chip, 0);
 	/* Transfer using pseudo-dma.
@@ -675,7 +677,8 @@
 	   a look up table, as there is no linear matching between the driver codec values
 	   and the real dBu value
 	*/
-	snd_assert(data < sizeof(vx2_akm_gains_lut), return);
+	if (snd_BUG_ON(data >= sizeof(vx2_akm_gains_lut)))
+		return;
 
 	switch (reg) {
 	case XX_CODEC_LEVEL_LEFT_REGISTER:
@@ -823,7 +826,8 @@
 		preamp++;	/* raise pre ampli + 18dB */
 		miclevel -= (18 * 2);   /* lower level 18 dB (*2 because of 0.5 dB steps !) */
         }
-	snd_assert(preamp < 4, return);
+	if (snd_BUG_ON(preamp >= 4))
+		return;
 
 	/* set pre-amp level */
 	chip->regSELMIC &= ~MICRO_SELECT_PREAMPLI_MASK;
diff --git a/sound/pci/ymfpci/ymfpci_main.c b/sound/pci/ymfpci/ymfpci_main.c
index 92d49aa..90d0d62 100644
--- a/sound/pci/ymfpci/ymfpci_main.c
+++ b/sound/pci/ymfpci/ymfpci_main.c
@@ -259,8 +259,10 @@
 	unsigned long flags;
 	int result;
 	
-	snd_assert(rvoice != NULL, return -EINVAL);
-	snd_assert(!pair || type == YMFPCI_PCM, return -EINVAL);
+	if (snd_BUG_ON(!rvoice))
+		return -EINVAL;
+	if (snd_BUG_ON(pair && type != YMFPCI_PCM))
+		return -EINVAL;
 	
 	spin_lock_irqsave(&chip->voice_lock, flags);
 	for (;;) {
@@ -278,7 +280,8 @@
 {
 	unsigned long flags;
 	
-	snd_assert(pvoice != NULL, return -EINVAL);
+	if (snd_BUG_ON(!pvoice))
+		return -EINVAL;
 	snd_ymfpci_hw_stop(chip);
 	spin_lock_irqsave(&chip->voice_lock, flags);
 	if (pvoice->number == chip->src441_used) {
@@ -494,7 +497,8 @@
 	u8 use_left, use_right;
 	unsigned long flags;
 
-	snd_assert(voice != NULL, return);
+	if (snd_BUG_ON(!voice))
+		return;
 	if (runtime->channels == 1) {
 		use_left = 1;
 		use_right = 1;
@@ -1813,7 +1817,8 @@
 	}
 
 	/* add S/PDIF control */
-	snd_assert(chip->pcm_spdif != NULL, return -EIO);
+	if (snd_BUG_ON(!chip->pcm_spdif))
+		return -ENXIO;
 	if ((err = snd_ctl_add(chip->card, kctl = snd_ctl_new1(&snd_ymfpci_spdif_default, chip))) < 0)
 		return err;
 	kctl->id.device = chip->pcm_spdif->device;
@@ -2133,7 +2138,8 @@
 	chip->work_base = ptr;
 	chip->work_base_addr = ptr_addr;
 	
-	snd_assert(ptr + chip->work_size == chip->work_ptr.area + chip->work_ptr.bytes, );
+	snd_BUG_ON(ptr + chip->work_size !=
+		   chip->work_ptr.area + chip->work_ptr.bytes);
 
 	snd_ymfpci_writel(chip, YDSXGR_PLAYCTRLBASE, chip->bank_base_playback_addr);
 	snd_ymfpci_writel(chip, YDSXGR_RECCTRLBASE, chip->bank_base_capture_addr);
@@ -2168,7 +2174,8 @@
 {
 	u16 ctrl;
 
-	snd_assert(chip != NULL, return -EINVAL);
+	if (snd_BUG_ON(!chip))
+		return -EINVAL;
 
 	if (chip->res_reg_area) {	/* don't touch busy hardware */
 		snd_ymfpci_writel(chip, YDSXGR_NATIVEDACOUTVOL, 0);