Fix kernel Oops NULL pointer deference
Call dev_dbg_obj only after checking if gobj->mdev is not NULL
Signed-off-by: Helen Koike <helen.koike@xxxxxxxxxxxxx>
---
drivers/media/media-entity.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/media/media-entity.c b/drivers/media/media-entity.c
index 5640ca2..bc44193 100644
--- a/drivers/media/media-entity.c
+++ b/drivers/media/media-entity.c
@@ -199,12 +199,12 @@ void media_gobj_create(struct media_device *mdev,
void media_gobj_destroy(struct media_gobj *gobj)
{
- dev_dbg_obj(__func__, gobj);
-
/* Do nothing if the object is not linked. */
if (gobj->mdev == NULL)
return;
+ dev_dbg_obj(__func__, gobj);
+
gobj->mdev->topology_version++;
/* Remove the object from mdev list */
--
2.7.4
