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authorTakashi Iwai <tiwai@suse.de>2013-07-11 17:57:55 +0200
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2013-07-25 14:07:24 -0700
commit2bc2f7d622af45d07980a83586c95c7530e4f6cc (patch)
treec0f777a4082ab53270a0f9502d75cd6904172d37
parent409972c1c8678bb0c28eb0417054e2794dd59ec9 (diff)
ALSA: 6fire: Fix unlocked snd_pcm_stop() call
commit 5b9ab3f7324a1b94a5a5a76d44cf92dfeb3b5e80 upstream. snd_pcm_stop() must be called in the PCM substream lock context. Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-rw-r--r--sound/usb/6fire/pcm.c12
1 files changed, 10 insertions, 2 deletions
diff --git a/sound/usb/6fire/pcm.c b/sound/usb/6fire/pcm.c
index 40dd50a80f55..8221ff2f209f 100644
--- a/sound/usb/6fire/pcm.c
+++ b/sound/usb/6fire/pcm.c
@@ -641,17 +641,25 @@ int usb6fire_pcm_init(struct sfire_chip *chip)
void usb6fire_pcm_abort(struct sfire_chip *chip)
{
struct pcm_runtime *rt = chip->pcm;
+ unsigned long flags;
int i;
if (rt) {
rt->panic = true;
- if (rt->playback.instance)
+ if (rt->playback.instance) {
+ snd_pcm_stream_lock_irqsave(rt->playback.instance, flags);
snd_pcm_stop(rt->playback.instance,
SNDRV_PCM_STATE_XRUN);
- if (rt->capture.instance)
+ snd_pcm_stream_unlock_irqrestore(rt->playback.instance, flags);
+ }
+
+ if (rt->capture.instance) {
+ snd_pcm_stream_lock_irqsave(rt->capture.instance, flags);
snd_pcm_stop(rt->capture.instance,
SNDRV_PCM_STATE_XRUN);
+ snd_pcm_stream_unlock_irqrestore(rt->capture.instance, flags);
+ }
for (i = 0; i < PCM_N_URBS; i++) {
usb_poison_urb(&rt->in_urbs[i].instance);