[PATCH 3.16 137/305] ext4: add missing brelse() add_new_gdb_meta_bg()'s error path

[Ben Hutchings]

3.16.63-rc1 review patch.  If anyone has any objections, please let me know.

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

From: Vasily Averin <v...@virtuozzo.com>

commit 61a9c11e5e7a0dab5381afa5d9d4dd5ebf18f7a0 upstream.

Fixes: 01f795f9e0d6 ("ext4: add online resizing support for meta_bg ...")
Signed-off-by: Vasily Averin <v...@virtuozzo.com>
Signed-off-by: Theodore Ts'o <ty...@mit.edu>
Signed-off-by: Ben Hutchings <b...@decadent.org.uk>
---
 fs/ext4/resize.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

--- a/fs/ext4/resize.c
+++ b/fs/ext4/resize.c
@@ -896,6 +896,7 @@ static int add_new_gdb_meta_bg(struct su
                                     sizeof(struct buffer_head *),
                                     GFP_NOFS);
        if (!n_group_desc) {
+               brelse(gdb_bh);
                err = -ENOMEM;
                ext4_warning(sb, "not enough memory for %lu groups",
                             gdb_num + 1);
@@ -911,8 +912,6 @@ static int add_new_gdb_meta_bg(struct su
        ext4_kvfree(o_group_desc);
        BUFFER_TRACE(gdb_bh, "get_write_access");
        err = ext4_journal_get_write_access(handle, gdb_bh);
-       if (unlikely(err))
-               brelse(gdb_bh);
        return err;
 }