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| author | Takashi Iwai <tiwai@suse.de> | 2013-07-11 17:57:55 +0200 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2013-07-15 18:12:50 +0200 |
| commit | 5b9ab3f7324a1b94a5a5a76d44cf92dfeb3b5e80 (patch) | |
| tree | 14f3e2848576f2a15a36ff2e1f2877483fe52356 /sound/usb/6fire | |
| parent | cc7282b8d5abbd48c81d1465925d464d9e3eaa8f (diff) | |
| download | lwn-5b9ab3f7324a1b94a5a5a76d44cf92dfeb3b5e80.tar.gz lwn-5b9ab3f7324a1b94a5a5a76d44cf92dfeb3b5e80.zip | |
ALSA: 6fire: Fix unlocked snd_pcm_stop() call
snd_pcm_stop() must be called in the PCM substream lock context.
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/usb/6fire')
| -rw-r--r-- | sound/usb/6fire/pcm.c | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/sound/usb/6fire/pcm.c b/sound/usb/6fire/pcm.c index c5b9cac37dc4..2aa4e13063a8 100644 --- a/sound/usb/6fire/pcm.c +++ b/sound/usb/6fire/pcm.c @@ -639,17 +639,25 @@ 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); |