2 files changed, 4 insertions, 0 deletions

diff --git a/sound/pci/atiixp.c b/sound/pci/atiixp.c
index 6e78c6789858..819430ac6b3b 100644
--- a/sound/pci/atiixp.c
+++ b/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);
 }
 
 /*
diff --git a/sound/pci/atiixp_modem.c b/sound/pci/atiixp_modem.c
index d0bec7ba3b0d..57f41820263f 100644
--- a/sound/pci/atiixp_modem.c
+++ b/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);
 }
 
 /*