From: Max Kellermann <max@duempel.org>
Date: Mon, 21 Mar 2016 13:30:28 +0000 (-0300)
Subject: [media] drivers/media/media-devnode: clear private_data before put_device()
X-Git-Tag: v4.7-rc1~130^2~17
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=bf244f665d76d20312c80524689b32a752888838;p=karo-tx-linux.git

[media] drivers/media/media-devnode: clear private_data before put_device()

Callbacks invoked from put_device() may free the struct media_devnode
pointer, so any cleanup needs to be done before put_device().

Signed-off-by: Max Kellermann <max@duempel.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
---

diff --git a/drivers/media/media-devnode.c b/drivers/media/media-devnode.c
index 64a4b1ef3dcd..b66dc9d0766b 100644
--- a/drivers/media/media-devnode.c
+++ b/drivers/media/media-devnode.c
@@ -197,10 +197,11 @@ static int media_release(struct inode *inode, struct file *filp)
 	if (mdev->fops->release)
 		mdev->fops->release(filp);
 
+	filp->private_data = NULL;
+
 	/* decrease the refcount unconditionally since the release()
 	   return value is ignored. */
 	put_device(&mdev->dev);
-	filp->private_data = NULL;
 	return 0;
 }