ALSA: atiixp: Fix unlocked snd_pcm_stop() call

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

Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

sound/pci/atiixp.c

@@ -689,7 +689,9 @@ static void snd_atiixp_xrun_dma(struct atiixp *chip, struct atiixp_dma *dma)
 	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);
 }
 
 /*

sound/pci/atiixp_modem.c

@@ -638,7 +638,9 @@ static void snd_atiixp_xrun_dma(struct atiixp_modem *chip,
 	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);
 }
 
 /*