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authorTakashi Iwai <tiwai@suse.de>2016-05-24 15:08:31 +0200
committerTakashi Iwai <tiwai@suse.de>2017-06-14 07:43:52 +0200
commit4b95ff781e30c50298257d22a2c3743b2e5739be (patch)
tree348558ed57d9e59d581bb9af5b27eb98c38dd3b5 /sound/core
parent68b4acd322494444803a3f49884ae889c8ec6689 (diff)
ALSA: pcm: Allow dropping stream directly after resume
So far, the PCM core refuses DROP ioctl when the stream in the suspended state. This was basically to avoid the invalid state change *during* the suspend. But since we protect the power change globally in the common PCM ioctl caller side, it's guaranteed that snd_pcm_drop() is called at the right power state. So we can assume that the drop of stream is safe immediately after SUSPENDED state. Reviewed-by: Takashi Sakamoto <o-takashi@sakamocchi.jp> Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/core')
-rw-r--r--sound/core/pcm_native.c3
1 files changed, 1 insertions, 2 deletions
diff --git a/sound/core/pcm_native.c b/sound/core/pcm_native.c
index bd1b74aa2068..69cf9b02ac70 100644
--- a/sound/core/pcm_native.c
+++ b/sound/core/pcm_native.c
@@ -1883,8 +1883,7 @@ static int snd_pcm_drop(struct snd_pcm_substream *substream)
runtime = substream->runtime;
if (runtime->status->state == SNDRV_PCM_STATE_OPEN ||
- runtime->status->state == SNDRV_PCM_STATE_DISCONNECTED ||
- runtime->status->state == SNDRV_PCM_STATE_SUSPENDED)
+ runtime->status->state == SNDRV_PCM_STATE_DISCONNECTED)
return -EBADFD;
snd_pcm_stream_lock_irq(substream);