Re: [PATCH] sound: cs43130: fix a NULL pointer dereference

[Mark Brown]

On Thu, Mar 14, 2019 at 10:51:20PM -0500, Kangjie Lu wrote:
> In case create_singlethread_workqueue fails, the fix returns
> -ENOMEM to avoid potential NULL pointer dereference.

Please use subject lines matching the style for the subsystem.  This
makes it easier for people to identify relevant patches.


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[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 
---
 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(>work, cs43130_imp_meas);
}
 
-- 
2.17.1