From: Namjae Jeon <namjae.jeon@samsung.com>
Date: Tue, 9 Oct 2012 15:08:56 +0000 (+0900)
Subject: udf: fix memory leak while allocating blocks during write
X-Git-Tag: v3.4.26~109
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=8d00c77065819b747c6fc0b56234afea72f17332;p=platform%2Fkernel%2Flinux-stable.git

udf: fix memory leak while allocating blocks during write

commit 2fb7d99d0de3fd8ae869f35ab682581d8455887a upstream.

Need to brelse the buffer_head stored in cur_epos and next_epos.

Signed-off-by: Namjae Jeon <namjae.jeon@samsung.com>
Signed-off-by: Ashish Sangwan <a.sangwan@samsung.com>
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Shuah Khan <shuah.khan@hp.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/fs/udf/inode.c b/fs/udf/inode.c
index 7d75280..ad68793 100644
--- a/fs/udf/inode.c
+++ b/fs/udf/inode.c
@@ -738,6 +738,8 @@ static sector_t inode_getblk(struct inode *inode, sector_t block,
 				goal, err);
 		if (!newblocknum) {
 			brelse(prev_epos.bh);
+			brelse(cur_epos.bh);
+			brelse(next_epos.bh);
 			*err = -ENOSPC;
 			return 0;
 		}
@@ -768,6 +770,8 @@ static sector_t inode_getblk(struct inode *inode, sector_t block,
 	udf_update_extents(inode, laarr, startnum, endnum, &prev_epos);
 
 	brelse(prev_epos.bh);
+	brelse(cur_epos.bh);
+	brelse(next_epos.bh);
 
 	newblock = udf_get_pblock(inode->i_sb, newblocknum,
 				iinfo->i_location.partitionReferenceNum, 0);