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| author | Takashi Iwai <tiwai@suse.de> | 2008-09-25 19:51:11 +0400 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2008-09-25 19:52:07 +0400 |
| commit | 24e8fc498e9618338854bfbcf8d1d737e0bf1775 (patch) | |
| tree | c87b8c9de12e8007620396f179d1f1c739aaaaab /sound | |
| parent | 399ccdc1cd4e92e541d4dacbbf18c52bd693418b (diff) | |
| download | linux-24e8fc498e9618338854bfbcf8d1d737e0bf1775.tar.xz | |
ALSA: remove unneeded power_mutex lock in snd_pcm_drop
The power_mutex lock in snd_pcm_drop may cause a possible deadlock
chain, and above all, it's unneeded. Let's get rid of it.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound')
| -rw-r--r-- | sound/core/pcm_native.c | 13 |
1 files changed, 3 insertions, 10 deletions
diff --git a/sound/core/pcm_native.c b/sound/core/pcm_native.c index c49b9d9e303c..c487025d3457 100644 --- a/sound/core/pcm_native.c +++ b/sound/core/pcm_native.c @@ -1546,16 +1546,10 @@ static int snd_pcm_drop(struct snd_pcm_substream *substream) card = substream->pcm->card; if (runtime->status->state == SNDRV_PCM_STATE_OPEN || - runtime->status->state == SNDRV_PCM_STATE_DISCONNECTED) + runtime->status->state == SNDRV_PCM_STATE_DISCONNECTED || + runtime->status->state == SNDRV_PCM_STATE_SUSPENDED) return -EBADFD; - snd_power_lock(card); - if (runtime->status->state == SNDRV_PCM_STATE_SUSPENDED) { - result = snd_power_wait(card, SNDRV_CTL_POWER_D0); - if (result < 0) - goto _unlock; - } - snd_pcm_stream_lock_irq(substream); /* resume pause */ if (runtime->status->state == SNDRV_PCM_STATE_PAUSED) @@ -1564,8 +1558,7 @@ static int snd_pcm_drop(struct snd_pcm_substream *substream) snd_pcm_stop(substream, SNDRV_PCM_STATE_SETUP); /* runtime->control->appl_ptr = runtime->status->hw_ptr; */ snd_pcm_stream_unlock_irq(substream); - _unlock: - snd_power_unlock(card); + return result; } |