Commit 3f94fad0 authored by Takashi Iwai's avatar Takashi Iwai
Browse files

ALSA: usb-audio: ignore delay calculation for capture stream 



It doesn't make sense to calculate the delay for capture streams in
the current implementation.  It's always zero, so we should skip the
computation in snd_usb_pcm_pointer() in the case of capture.

Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
parent ffe4d12b

sound/usb/pcm.c

+2 −1
Original line number Diff line number Diff line
@@ -75,6 +75,7 @@ static snd_pcm_uframes_t snd_usb_pcm_pointer(struct snd_pcm_substream *substream 
		return SNDRV_PCM_POS_XRUN;

	spin_lock(&subs->lock);

	hwptr_done = subs->hwptr_done;

	if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)

		substream->runtime->delay = snd_usb_pcm_delay(subs,

						substream->runtime->rate);

	spin_unlock(&subs->lock);