[ALSA] soc - 0.13 ASoC DAPM bug fix for unnamed streams
This patch fixes a bug whereby an unnamed stream would cause a NULL
pointer ref in snd_soc_dapm_stream_event().
Signed-off-by: Seth Forshee <seth.forshee@gmail.com>
Signed-off-by: Liam Girdwood <lg@opensource.wolfsonmicro.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>
diff --git a/sound/soc/soc-dapm.c b/sound/soc/soc-dapm.c
index 5c2a349..d0162a4 100644
--- a/sound/soc/soc-dapm.c
+++ b/sound/soc/soc-dapm.c
@@ -1239,6 +1239,9 @@
{
struct snd_soc_dapm_widget *w;
+ if (stream == NULL)
+ return 0;
+
mutex_lock(&codec->mutex);
list_for_each_entry(w, &codec->dapm_widgets, list)
{