1 files changed, 2 insertions, 0 deletions

diff --git a/sound/pci/atiixp_modem.c b/sound/pci/atiixp_modem.c
index cf29b9a1d65d..289563ecb6dd 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);
 }
 
 /*