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| author | Takashi Sakamoto <o-takashi@sakamocchi.jp> | 2019-06-15 11:11:00 +0200 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2019-06-17 08:18:36 +0200 |
| commit | c6b84ffbd5e78d6cf4aaafe5502e1bc99eb9657c (patch) | |
| tree | 6562084e126efb6303eeb9b0ca6f991a7ade1c56 /sound/firewire | |
| parent | ALSA: bebob: code refactoring for error path to start duplex stream (diff) | |
| download | linux-c6b84ffbd5e78d6cf4aaafe5502e1bc99eb9657c.tar.xz linux-c6b84ffbd5e78d6cf4aaafe5502e1bc99eb9657c.zip | |
ALSA: fireworks: change the range of critical section for stream data in PCM.hw_free callback
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>
Diffstat (limited to 'sound/firewire')
| -rw-r--r-- | sound/firewire/fireworks/fireworks_pcm.c | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/sound/firewire/fireworks/fireworks_pcm.c b/sound/firewire/fireworks/fireworks_pcm.c index 287fc05d5917..8dc34249a1b0 100644 --- a/sound/firewire/fireworks/fireworks_pcm.c +++ b/sound/firewire/fireworks/fireworks_pcm.c @@ -247,14 +247,15 @@ static int pcm_hw_free(struct snd_pcm_substream *substream) { struct snd_efw *efw = substream->private_data; - if (substream->runtime->status->state != SNDRV_PCM_STATE_OPEN) { - mutex_lock(&efw->mutex); + mutex_lock(&efw->mutex); + + if (substream->runtime->status->state != SNDRV_PCM_STATE_OPEN) --efw->substreams_counter; - mutex_unlock(&efw->mutex); - } snd_efw_stream_stop_duplex(efw); + mutex_unlock(&efw->mutex); + return snd_pcm_lib_free_vmalloc_buffer(substream); } |