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Date: Wed, 31 Jul 2013 15:23:09 +0200
From: Ben Hutchings <ben@...adent.org.uk>
To: linux-kernel@...r.kernel.org, stable@...r.kernel.org
CC: akpm@...ux-foundation.org, "Takashi Iwai" <tiwai@...e.de>
Subject: [41/84] ALSA: asihpi: Fix unlocked snd_pcm_stop() call
3.2.50-rc1 review patch. If anyone has any objections, please let me know.
------------------
From: Takashi Iwai <tiwai@...e.de>
commit 60478295d6876619f8f47f6d1a5c25eaade69ee3 upstream.
snd_pcm_stop() must be called in the PCM substream lock context.
Signed-off-by: Takashi Iwai <tiwai@...e.de>
[bwh: Backported to 3.2: adjust context]
Signed-off-by: Ben Hutchings <ben@...adent.org.uk>
---
sound/pci/asihpi/asihpi.c | 3 +++
1 file changed, 3 insertions(+)
--- a/sound/pci/asihpi/asihpi.c
+++ b/sound/pci/asihpi/asihpi.c
@@ -768,7 +768,10 @@ static void snd_card_asihpi_timer_functi
s->number);
ds->drained_count++;
if (ds->drained_count > 2) {
+ 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 {
--
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