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authorTakashi Iwai <tiwai@suse.de>2014-11-07 19:08:28 +0300
committerTakashi Iwai <tiwai@suse.de>2014-11-09 20:20:40 +0300
commit1fb8510cdb5b7befe8a59f533c7fc12ef0dac73e (patch)
treeb44569425ea7683d02893cfd145081a11d7677f1 /sound/usb/usx2y
parent31584ed18c073176a7ad96ddbfd09765e21e813d (diff)
downloadlinux-1fb8510cdb5b7befe8a59f533c7fc12ef0dac73e.tar.xz
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>
Diffstat (limited to 'sound/usb/usx2y')
-rw-r--r--sound/usb/usx2y/usbusx2yaudio.c9
1 files changed, 2 insertions, 7 deletions
diff --git a/sound/usb/usx2y/usbusx2yaudio.c b/sound/usb/usx2y/usbusx2yaudio.c
index a63330dd1407..61d5dc2a3421 100644
--- a/sound/usb/usx2y/usbusx2yaudio.c
+++ b/sound/usb/usx2y/usbusx2yaudio.c
@@ -272,13 +272,8 @@ static void usX2Y_clients_stop(struct usX2Ydev *usX2Y)
for (s = 0; s < 4; s++) {
struct snd_usX2Y_substream *subs = usX2Y->subs[s];
if (subs) {
- if (atomic_read(&subs->state) >= state_PRERUNNING) {
- unsigned long flags;
-
- snd_pcm_stream_lock_irqsave(subs->pcm_substream, flags);
- snd_pcm_stop(subs->pcm_substream, SNDRV_PCM_STATE_XRUN);
- snd_pcm_stream_unlock_irqrestore(subs->pcm_substream, flags);
- }
+ if (atomic_read(&subs->state) >= state_PRERUNNING)
+ snd_pcm_stop_xrun(subs->pcm_substream);
for (u = 0; u < NRURBS; u++) {
struct urb *urb = subs->urb[u];
if (NULL != urb)