From: Djalal Harouni <tixxdz@opendz.org>
Date: Thu, 27 Sep 2012 02:58:50 +0000 (-0400)
Subject: ext4: release donor reference when EXT4_IOC_MOVE_EXT ioctl fails
X-Git-Url: http://drtracing.org/?a=commitdiff_plain;h=9b68733273665a4c0d98041a657dabfb4fd6bd80;p=deliverable%2Flinux.git

ext4: release donor reference when EXT4_IOC_MOVE_EXT ioctl fails

When the EXT4_IOC_MOVE_EXT ioctl() fails on bigalloc file systems, we
should jump to the 'mext_out' label to release the donor file reference.

Signed-off-by: Djalal Harouni <tixxdz@opendz.org>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
---

diff --git a/fs/ext4/ioctl.c b/fs/ext4/ioctl.c
index 4c8174aa685c..17c53a69454d 100644
--- a/fs/ext4/ioctl.c
+++ b/fs/ext4/ioctl.c
@@ -258,7 +258,8 @@ group_extend_out:
 			       EXT4_FEATURE_RO_COMPAT_BIGALLOC)) {
 			ext4_msg(sb, KERN_ERR,
 				 "Online defrag not supported with bigalloc");
-			return -EOPNOTSUPP;
+			err = -EOPNOTSUPP;
+			goto mext_out;
 		}
 
 		err = mnt_want_write_file(filp);