ALSA: pxa2xx: Fix unlocked snd_pcm_stop() call

commit 46f6c1aaf790be9ea3c8ddfc8f235a5f677d08e2 upstream.

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

Acked-by: Mark Brown <broonie@linaro.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

1 files changed, 2 insertions, 0 deletions

diff --git a/sound/arm/pxa2xx-pcm-lib.c b/sound/arm/pxa2xx-pcm-lib.c
index 76e0d5695075..823359ed95e1 100644
--- a/sound/arm/pxa2xx-pcm-lib.c
+++ b/sound/arm/pxa2xx-pcm-lib.c
@@ -166,7 +166,9 @@ void pxa2xx_pcm_dma_irq(int dma_ch, void *dev_id)
         } else {
                 printk(KERN_ERR "%s: DMA error on channel %d (DCSR=%#x)\n",
                         rtd->params->name, dma_ch, dcsr);
+                snd_pcm_stream_lock(substream);
                 snd_pcm_stop(substream, SNDRV_PCM_STATE_XRUN);
+                snd_pcm_stream_unlock(substream);
         }
 }
 EXPORT_SYMBOL(pxa2xx_pcm_dma_irq);