[PATCH 3.16 238/245] [media] media: Fix media_open() to clear filp->private_data in error leg

[Ben Hutchings]

3.16.83-rc1 review patch.  If anyone has any objections, please let me know.

------------------

From: Shuah Khan <shuahkh@xxxxxxxxxxxxxxx>

commit d40ec6fdb0b03b7be4c7923a3da0e46bf943740a upstream.

Fix media_open() to clear filp->private_data when file open
fails.

Signed-off-by: Shuah Khan <shuahkh@xxxxxxxxxxxxxxx>
Acked-by: Sakari Ailus <sakari.ailus@xxxxxxxxxxxxxxx>
Signed-off-by: Mauro Carvalho Chehab <mchehab@xxxxxxxxxxxxxxx>
Signed-off-by: Ben Hutchings <ben@xxxxxxxxxxxxxxx>
---
 drivers/media/media-devnode.c | 1 +
 1 file changed, 1 insertion(+)

--- a/drivers/media/media-devnode.c
+++ b/drivers/media/media-devnode.c
@@ -181,6 +181,7 @@ static int media_open(struct inode *inod
 		ret = mdev->fops->open(filp);
 		if (ret) {
 			put_device(&mdev->dev);
+			filp->private_data = NULL;
 			return ret;
 		}
 	}