ALSA: drivers: Convert timers to use timer_setup()
In preparation for unconditionally passing the struct timer_list pointer to
all timer callbacks, switch to using the new timer_setup() and from_timer()
to pass the timer pointer explicitly.
Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
diff --git a/sound/drivers/dummy.c b/sound/drivers/dummy.c
index c0939a0..7b2b1f7 100644
--- a/sound/drivers/dummy.c
+++ b/sound/drivers/dummy.c
@@ -306,9 +306,9 @@ static int dummy_systimer_prepare(struct snd_pcm_substream *substream)
return 0;
}
-static void dummy_systimer_callback(unsigned long data)
+static void dummy_systimer_callback(struct timer_list *t)
{
- struct dummy_systimer_pcm *dpcm = (struct dummy_systimer_pcm *)data;
+ struct dummy_systimer_pcm *dpcm = from_timer(dpcm, t, timer);
unsigned long flags;
int elapsed = 0;
@@ -343,8 +343,7 @@ static int dummy_systimer_create(struct snd_pcm_substream *substream)
if (!dpcm)
return -ENOMEM;
substream->runtime->private_data = dpcm;
- setup_timer(&dpcm->timer, dummy_systimer_callback,
- (unsigned long) dpcm);
+ timer_setup(&dpcm->timer, dummy_systimer_callback, 0);
spin_lock_init(&dpcm->lock);
dpcm->substream = substream;
return 0;
