diff mbox series

[5.15,012/207] ALSA: usb-audio: Dont start stream for capture at prepare

Message ID 20211206145610.617373155@linuxfoundation.org
State New
Headers show
Series None | expand

Commit Message

Greg Kroah-Hartman Dec. 6, 2021, 2:54 p.m. UTC 
From: Takashi Iwai <tiwai@suse.de>

commit 83de8f83816e8e15227dac985163e3d433a2bf9d upstream.

The recent change made mistakenly the stream for capture started at
prepare stage.  Add the stream direction check to avoid it.

Fixes: 9c9a3b9da891 ("ALSA: usb-audio: Rename early_playback_start flag with lowlatency_playback")
Link: https://lore.kernel.org/r/20211119102629.7476-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 sound/usb/pcm.c |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)
diff mbox series

Patch

--- a/sound/usb/pcm.c
+++ b/sound/usb/pcm.c
@@ -640,7 +640,8 @@  static int snd_usb_pcm_prepare(struct sn
 	runtime->delay = 0;
 
 	subs->lowlatency_playback = lowlatency_playback_available(runtime, subs);
-	if (!subs->lowlatency_playback)
+	if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK &&
+	    !subs->lowlatency_playback)
 		ret = start_endpoints(subs);
 
  unlock: