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ALSA: bebob: change the range of critical section for stream data in PCM.hw_free callback

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The operation of duplex streams should be in critical section.

Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Takashi Sakamoto 2019-06-15 18:10:58 +09:00 committed by Takashi Iwai
parent 73f7864eb5
commit 5e818ac21f
1 changed files with 5 additions and 4 deletions
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9
sound/firewire/bebob/bebob_pcm.c
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@ -213,14 +213,15 @@ static int pcm_hw_free(struct snd_pcm_substream *substream)
{
struct snd_bebob *bebob = substream->private_data;
if (substream->runtime->status->state != SNDRV_PCM_STATE_OPEN) {
mutex_lock(&bebob->mutex);
mutex_lock(&bebob->mutex);
if (substream->runtime->status->state != SNDRV_PCM_STATE_OPEN)
bebob->substreams_counter--;
mutex_unlock(&bebob->mutex);
}
snd_bebob_stream_stop_duplex(bebob);
mutex_unlock(&bebob->mutex);
return snd_pcm_lib_free_vmalloc_buffer(substream);
}