From: Kangjie Lu <kjlu@umn.edu>
Date: Fri, 15 Mar 2019 03:51:20 +0000 (-0500)
Subject: ASoC: cs43130: fix a NULL pointer dereference
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=a2be42f18d409213bb7e7a736e3ef6ba005115bb;p=linux.git

ASoC: cs43130: fix a NULL pointer dereference

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

Signed-off-by: Kangjie Lu <kjlu@umn.edu>
Signed-off-by: Mark Brown <broonie@kernel.org>
---

diff --git a/sound/soc/codecs/cs43130.c b/sound/soc/codecs/cs43130.c
index 3f7b255587e6a..80d672710eaef 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);
 	}