linux-ext4 - [PATCH] ext4: release donor reference when EXT4_IOC_MOVE

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Message-ID: <20120106215013.GA27957@dztty>
Date:	Fri, 6 Jan 2012 22:50:13 +0100
From:	Djalal Harouni <tixxdz@...ndz.org>
To:	Theodore Ts'o <tytso@....edu>,
	Andreas Dilger <adilger.kernel@...ger.ca>
Cc:	linux-ext4@...r.kernel.org
Subject: [PATCH] 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@...ndz.org>
---
 fs/ext4/ioctl.c |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)

diff --git a/fs/ext4/ioctl.c b/fs/ext4/ioctl.c
index a567968..034e147 100644
--- a/fs/ext4/ioctl.c
+++ b/fs/ext4/ioctl.c
@@ -237,7 +237,8 @@ setversion_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(filp->f_path.mnt);
-- 
1.7.1
--
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