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ALSA: ua101: Fix unlocked snd_pcm_stop() call

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snd_pcm_stop() must be called in the PCM substream lock context.

Cc: <stable@vger.kernel.org>
Acked-by: Clemens Ladisch <clemens@ladisch.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Takashi Iwai 2013-07-11 17:58:25 +02:00
parent 5b9ab3f732
commit 9538aa46c2
1 changed files with 12 additions and 2 deletions
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14
sound/usb/misc/ua101.c
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@ -613,14 +613,24 @@ static int start_usb_playback(struct ua101 *ua)
static void abort_alsa_capture(struct ua101 *ua)
{
if (test_bit(ALSA_CAPTURE_RUNNING, &ua->states))
unsigned long flags;
if (test_bit(ALSA_CAPTURE_RUNNING, &ua->states)) {
snd_pcm_stream_lock_irqsave(ua->capture.substream, flags);
snd_pcm_stop(ua->capture.substream, SNDRV_PCM_STATE_XRUN);
snd_pcm_stream_unlock_irqrestore(ua->capture.substream, flags);
}
}
static void abort_alsa_playback(struct ua101 *ua)
{
if (test_bit(ALSA_PLAYBACK_RUNNING, &ua->states))
unsigned long flags;
if (test_bit(ALSA_PLAYBACK_RUNNING, &ua->states)) {
snd_pcm_stream_lock_irqsave(ua->playback.substream, flags);
snd_pcm_stop(ua->playback.substream, SNDRV_PCM_STATE_XRUN);
snd_pcm_stream_unlock_irqrestore(ua->playback.substream, flags);
}
}
static int set_stream_hw(struct ua101 *ua, struct snd_pcm_substream *substream,