From 7d70c81ccaccb74326255fb9549c872bc29193d6 Mon Sep 17 00:00:00 2001 From: Takashi Iwai Date: Mon, 19 Jan 2015 15:11:17 +0100 Subject: [PATCH] ALSA: line6: Don't handle PCM trigger for other cards Otherwise it oopses. Tested-by: Chris Rorvick Signed-off-by: Takashi Iwai --- sound/usb/line6/pcm.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/sound/usb/line6/pcm.c b/sound/usb/line6/pcm.c index 520cf540e83c..932cc7e194e2 100644 --- a/sound/usb/line6/pcm.c +++ b/sound/usb/line6/pcm.c @@ -233,6 +233,8 @@ int snd_line6_trigger(struct snd_pcm_substream *substream, int cmd) clear_bit(LINE6_INDEX_PREPARED, &line6pcm->flags); snd_pcm_group_for_each_entry(s, substream) { + if (s->pcm->card != substream->pcm->card) + continue; switch (s->stream) { case SNDRV_PCM_STREAM_PLAYBACK: err = snd_line6_playback_trigger(line6pcm, cmd);