linux-kernel - [PATCH 039/139] ALSA: ali5451: remove irq enabling in pointer callback

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Date:	Thu, 28 Feb 2013 14:43:09 +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 039/139] ALSA: ali5451: remove irq enabling in pointer callback

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

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

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

commit dacae5a19b4cbe1b5e3a86de23ea74cbe9ec9652 upstream.

snd_ali_pointer function is called with local
interrupts disabled. However it seems very strange to
reenable them in such way.

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/ali5451/ali5451.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sound/pci/ali5451/ali5451.c b/sound/pci/ali5451/ali5451.c
index 9dfc27b..2c4dd6b 100644
--- a/sound/pci/ali5451/ali5451.c
+++ b/sound/pci/ali5451/ali5451.c
@@ -1435,7 +1435,7 @@ static snd_pcm_uframes_t snd_ali_pointer(struct snd_pcm_substream *substream)
 
 	spin_lock(&codec->reg_lock);
 	if (!pvoice->running) {
-		spin_unlock_irq(&codec->reg_lock);
+		spin_unlock(&codec->reg_lock);
 		return 0;
 	}
 	outb(pvoice->number, ALI_REG(codec, ALI_GC_CIR));
-- 
1.8.1.2

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