ASoC: atmel: Fix unlocked snd_pcm_stop() call

commit 571185717f8d7f2a088a7ac38d94a9ad5fd9da5c 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/soc/atmel/atmel-pcm-dma.c b/sound/soc/atmel/atmel-pcm-dma.c
index 1d38fd0bc4e2..d12826526798 100644
--- a/sound/soc/atmel/atmel-pcm-dma.c
+++ b/sound/soc/atmel/atmel-pcm-dma.c
@@ -81,7 +81,9 @@ static void atmel_pcm_dma_irq(u32 ssc_sr,
 
                 /* stop RX and capture: will be enabled again at restart */
                 ssc_writex(prtd->ssc->regs, SSC_CR, prtd->mask->ssc_disable);
+                snd_pcm_stream_lock(substream);
                 snd_pcm_stop(substream, SNDRV_PCM_STATE_XRUN);
+                snd_pcm_stream_unlock(substream);
 
                 /* now drain RHR and read status to remove xrun condition */
                 ssc_readx(prtd->ssc->regs, SSC_RHR);