From: Takashi Iwai <tiwai@suse.de>
Date: Thu, 11 Jul 2013 15:55:57 +0000 (+0200)
Subject: ALSA: asihpi: Fix unlocked snd_pcm_stop() call
X-Git-Tag: firefly_0821_release~6453^2~1480
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=4b06cd616f646a4257b39a1cc9a10410e7c90088;p=firefly-linux-kernel-4.4.55.git

ALSA: asihpi: Fix unlocked snd_pcm_stop() call

commit 60478295d6876619f8f47f6d1a5c25eaade69ee3 upstream.

snd_pcm_stop() must be called in the PCM substream lock context.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/sound/pci/asihpi/asihpi.c b/sound/pci/asihpi/asihpi.c
index fbc17203613c..a471d821c608 100644
--- a/sound/pci/asihpi/asihpi.c
+++ b/sound/pci/asihpi/asihpi.c
@@ -769,7 +769,10 @@ static void snd_card_asihpi_timer_function(unsigned long data)
 						s->number);
 				ds->drained_count++;
 				if (ds->drained_count > 20) {
+					unsigned long flags;
+					snd_pcm_stream_lock_irqsave(s, flags);
 					snd_pcm_stop(s, SNDRV_PCM_STATE_XRUN);
+					snd_pcm_stream_unlock_irqrestore(s, flags);
 					continue;
 				}
 			} else {