linux-kernel - [ 117/221] udf: fix memory leak while allocating blocks during write

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Date:	Tue, 15 Jan 2013 10:50:44 -0800
From:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:	linux-kernel@...r.kernel.org, stable@...r.kernel.org
Cc:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	alan@...rguk.ukuu.org.uk, Namjae Jeon <namjae.jeon@...sung.com>,
	Ashish Sangwan <a.sangwan@...sung.com>,
	Jan Kara <jack@...e.cz>, Shuah Khan <shuah.khan@...com>
Subject: [ 117/221] udf: fix memory leak while allocating blocks during write

3.7-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Namjae Jeon <namjae.jeon@...sung.com>

commit 2fb7d99d0de3fd8ae869f35ab682581d8455887a upstream.

Need to brelse the buffer_head stored in cur_epos and next_epos.

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

---
 fs/udf/inode.c |    4 ++++
 1 file changed, 4 insertions(+)

--- a/fs/udf/inode.c
+++ b/fs/udf/inode.c
@@ -765,6 +765,8 @@ static sector_t inode_getblk(struct inod
 				goal, err);
 		if (!newblocknum) {
 			brelse(prev_epos.bh);
+			brelse(cur_epos.bh);
+			brelse(next_epos.bh);
 			*err = -ENOSPC;
 			return 0;
 		}
@@ -795,6 +797,8 @@ static sector_t inode_getblk(struct inod
 	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);


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