[alsa-devel] [PATCH] sound: cs43130: fix a NULL pointer dereference

[Kangjie Lu]

In case create_singlethread_workqueue fails, the fix returns
-ENOMEM to avoid potential NULL pointer dereference.

Signed-off-by: Kangjie Lu <kjlu at umn.edu>
---
 sound/soc/codecs/cs43130.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/sound/soc/codecs/cs43130.c b/sound/soc/codecs/cs43130.c
index 3f7b255587e6..80d672710eae 100644
--- a/sound/soc/codecs/cs43130.c
+++ b/sound/soc/codecs/cs43130.c
@@ -2322,6 +2322,8 @@ static int cs43130_probe(struct snd_soc_component *component)
 			return ret;
 
 		cs43130->wq = create_singlethread_workqueue("cs43130_hp");
+		if (!cs43130->wq)
+			return -ENOMEM;
 		INIT_WORK(&cs43130->work, cs43130_imp_meas);
 	}
 
-- 
2.17.1