ALSA: pcm: Add snd_pcm_stop_xrun() helper
Add a new helper function snd_pcm_stop_xrun() to the standard sequnce
lock/snd_pcm_stop(XRUN)/unlock by a single call, and replace the
existing open codes with this helper.
The function checks the PCM running state to prevent setting the wrong
state, too, for more safety.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
diff --git a/sound/firewire/amdtp.c b/sound/firewire/amdtp.c
index 95fc2eaf..3badc70 100644
--- a/sound/firewire/amdtp.c
+++ b/sound/firewire/amdtp.c
@@ -1006,11 +1006,7 @@
struct snd_pcm_substream *pcm;
pcm = ACCESS_ONCE(s->pcm);
- if (pcm) {
- snd_pcm_stream_lock_irq(pcm);
- if (snd_pcm_running(pcm))
- snd_pcm_stop(pcm, SNDRV_PCM_STATE_XRUN);
- snd_pcm_stream_unlock_irq(pcm);
- }
+ if (pcm)
+ snd_pcm_stop_xrun(pcm);
}
EXPORT_SYMBOL(amdtp_stream_pcm_abort);
diff --git a/sound/firewire/isight.c b/sound/firewire/isight.c
index 7ac9443..48d6dca 100644
--- a/sound/firewire/isight.c
+++ b/sound/firewire/isight.c
@@ -131,14 +131,8 @@
static void isight_pcm_abort(struct isight *isight)
{
- unsigned long flags;
-
- if (ACCESS_ONCE(isight->pcm_active)) {
- snd_pcm_stream_lock_irqsave(isight->pcm, flags);
- if (snd_pcm_running(isight->pcm))
- snd_pcm_stop(isight->pcm, SNDRV_PCM_STATE_XRUN);
- snd_pcm_stream_unlock_irqrestore(isight->pcm, flags);
- }
+ if (ACCESS_ONCE(isight->pcm_active))
+ snd_pcm_stop_xrun(isight->pcm);
}
static void isight_dropped_samples(struct isight *isight, unsigned int total)