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Subject[PATCH 3.16 158/305] ext4: fix buffer leak in __ext4_read_dirblock() on error path
3.16.63-rc1 review patch.  If anyone has any objections, please let me know.

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

From: Vasily Averin <vvs@virtuozzo.com>

commit de59fae0043f07de5d25e02ca360f7d57bfa5866 upstream.

Fixes: dc6982ff4db1 ("ext4: refactor code to read directory blocks ...")
Signed-off-by: Vasily Averin <vvs@virtuozzo.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
[bwh: Backported to 3.16: adjust context]
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---
fs/ext4/namei.c | 1 +
1 file changed, 1 insertion(+)

--- a/fs/ext4/namei.c
+++ b/fs/ext4/namei.c
@@ -122,6 +122,7 @@ static struct buffer_head *__ext4_read_d
if (!is_dx_block && type == INDEX) {
ext4_error_inode(inode, __func__, line, block,
"directory leaf block found instead of index block");
+ brelse(bh);
return ERR_PTR(-EIO);
}
if (!ext4_has_metadata_csum(inode->i_sb) ||
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