[42/84] ALSA: atiixp: Fix unlocked snd_pcm_stop() call

[Ben Hutchings]

3.2.50-rc1 review patch.  If anyone has any objections, please let me know.

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

From: Takashi Iwai <tiwai@xxxxxxx>

commit cc7282b8d5abbd48c81d1465925d464d9e3eaa8f upstream.

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

Signed-off-by: Takashi Iwai <tiwai@xxxxxxx>
Signed-off-by: Ben Hutchings <ben@xxxxxxxxxxxxxxx>
---
 sound/pci/atiixp.c       | 2 ++
 sound/pci/atiixp_modem.c | 2 ++
 2 files changed, 4 insertions(+)

--- a/sound/pci/atiixp.c
+++ b/sound/pci/atiixp.c
@@ -688,7 +688,9 @@ static void snd_atiixp_xrun_dma(struct a
 	if (! dma->substream || ! dma->running)
 		return;
 	snd_printdd("atiixp: XRUN detected (DMA %d)\n", dma->ops->type);
+	snd_pcm_stream_lock(dma->substream);
 	snd_pcm_stop(dma->substream, SNDRV_PCM_STATE_XRUN);
+	snd_pcm_stream_unlock(dma->substream);
 }
 
 /*
--- a/sound/pci/atiixp_modem.c
+++ b/sound/pci/atiixp_modem.c
@@ -638,7 +638,9 @@ static void snd_atiixp_xrun_dma(struct a
 	if (! dma->substream || ! dma->running)
 		return;
 	snd_printdd("atiixp-modem: XRUN detected (DMA %d)\n", dma->ops->type);
+	snd_pcm_stream_lock(dma->substream);
 	snd_pcm_stop(dma->substream, SNDRV_PCM_STATE_XRUN);
+	snd_pcm_stream_unlock(dma->substream);
 }
 
 /*

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