[ 73/79] media: saa7134: Fix unlocked snd_pcm_stop() call

From: Greg Kroah-Hartman
Date: Fri Jul 26 2013 - 17:29:00 EST

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


From: Takashi Iwai <tiwai@xxxxxxx>

commit e6355ad7b1c6f70e2f48ae159f5658b441ccff95 upstream.

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

Signed-off-by: Takashi Iwai <tiwai@xxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>

drivers/media/pci/saa7134/saa7134-alsa.c | 2 ++
1 file changed, 2 insertions(+)

--- a/drivers/media/pci/saa7134/saa7134-alsa.c
+++ b/drivers/media/pci/saa7134/saa7134-alsa.c
@@ -172,7 +172,9 @@ static void saa7134_irq_alsa_done(struct
dprintk("irq: overrun [full=%d/%d] - Blocks in %d\n",dev->dmasound.read_count,
dev->dmasound.bufsize, dev->dmasound.blocks);
+ snd_pcm_stream_lock(dev->dmasound.substream);
+ snd_pcm_stream_unlock(dev->dmasound.substream);

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