linux-kernel - [PATCH 038/139] ALSA: rme32.c irq enabling after spin_lock

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Message-Id: <1362062689-2567-39-git-send-email-luis.henriques@canonical.com>
Date:	Thu, 28 Feb 2013 14:43:08 +0000
From:	Luis Henriques <luis.henriques@...onical.com>
To:	linux-kernel@...r.kernel.org, stable@...r.kernel.org,
	kernel-team@...ts.ubuntu.com
Cc:	Denis Efremov <yefremov.denis@...il.com>,
	Takashi Iwai <tiwai@...e.de>,
	Luis Henriques <luis.henriques@...onical.com>
Subject: [PATCH 038/139] ALSA: rme32.c irq enabling after spin_lock_irq

3.5.7.7 -stable review patch.  If anyone has any objections, please let me know.

------------------

From: Denis Efremov <yefremov.denis@...il.com>

commit f49a59c4471d81a233e09dda45187cc44fda009d upstream.

According to the other code in this driver and similar
code in rme96 it seems, that spin_lock_irq in
snd_rme32_capture_close function should be paired
with spin_unlock_irq.

Found by Linux Driver Verification project (linuxtesting.org).

Signed-off-by: Denis Efremov <yefremov.denis@...il.com>
Signed-off-by: Takashi Iwai <tiwai@...e.de>
Signed-off-by: Luis Henriques <luis.henriques@...onical.com>
---
 sound/pci/rme32.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sound/pci/rme32.c b/sound/pci/rme32.c
index 46b3629..f1dec07 100644
--- a/sound/pci/rme32.c
+++ b/sound/pci/rme32.c
@@ -1017,7 +1017,7 @@ static int snd_rme32_capture_close(struct snd_pcm_substream *substream)
 	spin_lock_irq(&rme32->lock);
 	rme32->capture_substream = NULL;
 	rme32->capture_periodsize = 0;
-	spin_unlock(&rme32->lock);
+	spin_unlock_irq(&rme32->lock);
 	return 0;
 }
 
-- 
1.8.1.2

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