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ALSA: vx: Don't try to update capture stream before running

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The update of stream costs significantly, and we should avoid it
unless the stream really has started.  Check pipe->running flag
instead of pipe->prepared.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Takashi Iwai 2017-01-04 12:34:14 +01:00
parent 874e1f6fad
commit ed3c177d96
1 changed files with 1 additions and 1 deletions
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2
sound/drivers/vx/vx_pcm.c
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@ -1015,7 +1015,7 @@ static void vx_pcm_capture_update(struct vx_core *chip, struct snd_pcm_substream
int size, space, count;
struct snd_pcm_runtime *runtime = subs->runtime;
if (! pipe->prepared || (chip->chip_status & VX_STAT_IS_STALE))
if (!pipe->running || (chip->chip_status & VX_STAT_IS_STALE))
return;
size = runtime->buffer_size - snd_pcm_capture_avail(runtime);