3.2.56-rc1 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>
[wml: Backported to 3.4: Adjust filename]
Signed-off-by: Weng Meiling <wengmeiling.weng@xxxxxxxxxx>
Signed-off-by: Ben Hutchings <ben@xxxxxxxxxxxxxxx>
---
drivers/media/video/saa7134/saa7134-alsa.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/media/video/saa7134/saa7134-alsa.c b/drivers/media/video/saa7134/saa7134-alsa.c
index 10460fd..dbcdfbf 100644
--- a/drivers/media/video/saa7134/saa7134-alsa.c
+++ b/drivers/media/video/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;
}
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