ASoC: atmel: Fix unlocked snd_pcm_stop() call
Takashi Iwai [Thu, 11 Jul 2013 16:00:01 +0000 (18:00 +0200)]
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>

sound/soc/atmel/atmel-pcm-dma.c

index 1d38fd0..d128265 100644 (file)
@@ -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);