ALSA: pcm: Use snd_pcm_stop_xrun() for xrun injection
Basically the xrun injection routine can simply call the standard
helper snd_pcm_stop_xrun(), but with one exception: it may be called
even when the stream is closed.
Make snd_pcm_stop_xrun() more robust and check the NULL runtime state,
and simplify xrun injection code by calling it.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
diff --git a/sound/core/pcm.c b/sound/core/pcm.c
index 6f037a4..fdb9b92 100644
--- a/sound/core/pcm.c
+++ b/sound/core/pcm.c
@@ -492,13 +492,8 @@ static void snd_pcm_xrun_injection_write(struct snd_info_entry *entry,
struct snd_info_buffer *buffer)
{
struct snd_pcm_substream *substream = entry->private_data;
- struct snd_pcm_runtime *runtime;
- snd_pcm_stream_lock_irq(substream);
- runtime = substream->runtime;
- if (runtime && runtime->status->state == SNDRV_PCM_STATE_RUNNING)
- __snd_pcm_xrun(substream);
- snd_pcm_stream_unlock_irq(substream);
+ snd_pcm_stop_xrun(substream);
}
static void snd_pcm_xrun_debug_read(struct snd_info_entry *entry,
