[alsa-devel] [PATCH 09/10] [media] saa7134: Fix unlocked snd_pcm_stop() call

[Takashi Iwai]

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

Cc: <stable at vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai at suse.de>
---
 drivers/media/pci/saa7134/saa7134-alsa.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/media/pci/saa7134/saa7134-alsa.c b/drivers/media/pci/saa7134/saa7134-alsa.c
index 10460fd..dbcdfbf 100644
--- 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 saa7134_dev *dev,
 		dprintk("irq: overrun [full=%d/%d] - Blocks in %d\n",dev->dmasound.read_count,
 			dev->dmasound.bufsize, dev->dmasound.blocks);
 		spin_unlock(&dev->slock);
+		snd_pcm_stream_lock(dev->dmasound.substream);
 		snd_pcm_stop(dev->dmasound.substream,SNDRV_PCM_STATE_XRUN);
+		snd_pcm_stream_unlock(dev->dmasound.substream);
 		return;
 	}
 
-- 
1.8.3.1