ALSA: pcm: Return 0 when size < start_threshold in capture
In __snd_pcm_lib_xfer(), when capture, if state is PREPARED and size is less than start_threshold nothing can be done. As there is no error, 0 is returned. Signed-off-by: Ricardo Biehl Pasquali <pasqualirb@gmail.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
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@ -2173,11 +2173,16 @@ snd_pcm_sframes_t __snd_pcm_lib_xfer(struct snd_pcm_substream *substream,
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goto _end_unlock;
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if (!is_playback &&
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runtime->status->state == SNDRV_PCM_STATE_PREPARED &&
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size >= runtime->start_threshold) {
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err = snd_pcm_start(substream);
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if (err < 0)
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runtime->status->state == SNDRV_PCM_STATE_PREPARED) {
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if (size >= runtime->start_threshold) {
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err = snd_pcm_start(substream);
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if (err < 0)
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goto _end_unlock;
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} else {
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/* nothing to do */
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err = 0;
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goto _end_unlock;
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}
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}
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runtime->twake = runtime->control->avail_min ? : 1;
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