From 8e48591700f7df5969e17b0a41b7dde011c6810c Mon Sep 17 00:00:00 2001
From: Matthias Kaehlcke <matthias.kaehlcke@gmail.com>
Date: Tue, 31 Jul 2007 00:39:23 -0700
Subject: [PATCH] Videopix Frame Grabber: Fix unreleased lock in vfc_debug()

Videopix Frame Grabber: vfc_debug() doesn't release the device lock
when copy_from_user() fails

Signed-off-by: Matthias Kaehlcke <matthias.kaehlcke@gmail.com>
Acked-by: "David S. Miller" <davem@davemloft.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 drivers/sbus/char/vfc_dev.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/sbus/char/vfc_dev.c b/drivers/sbus/char/vfc_dev.c
index 26b1d2a17ed2..9269f7fbd363 100644
--- a/drivers/sbus/char/vfc_dev.c
+++ b/drivers/sbus/char/vfc_dev.c
@@ -248,6 +248,7 @@ static int vfc_debug(struct vfc_dev *dev, int cmd, void __user *argp)
 					buffer,inout.len);
 
 		if (copy_to_user(argp,&inout,sizeof(inout))) {
+			vfc_unlock_device(dev);
 			kfree(buffer);
 			return -EFAULT;
 		}