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: v2.6.34.15~28
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=3cb827b381dc2aace21720eaef0dee832f3ffd46;p=thirdparty%2Fkernel%2Fstable.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: Paul Gortmaker <paul.gortmaker@windriver.com>
---

diff --git a/fs/udf/inode.c b/fs/udf/inode.c
index 8a3fbd177cab3..fe64cf54b11e6 100644
--- a/fs/udf/inode.c
+++ b/fs/udf/inode.c
@@ -654,6 +654,8 @@ static struct buffer_head *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 NULL;
 		}
@@ -684,6 +686,8 @@ static struct buffer_head *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);