ASoC: Fix NULL pointer dereference in __pxa2xx_pcm_hw_free
Check for rtd->params->drcmr != NULL before accessing it.
Signed-off-by: Daniel Mack <daniel@caiaq.de>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
diff --git a/sound/arm/pxa2xx-pcm-lib.c b/sound/arm/pxa2xx-pcm-lib.c
index 108b643..6205f37 100644
--- a/sound/arm/pxa2xx-pcm-lib.c
+++ b/sound/arm/pxa2xx-pcm-lib.c
@@ -75,7 +75,7 @@
{
struct pxa2xx_runtime_data *rtd = substream->runtime->private_data;
- if (rtd && rtd->params)
+ if (rtd && rtd->params && rtd->params->drcmr)
*rtd->params->drcmr = 0;
snd_pcm_set_runtime_buffer(substream, NULL);