ext4: add missing brelse() in set_flexbg_block_bitmap()'s error path

commit cea5794122125bf67559906a0762186cf417099c upstream.

Fixes: 33afdcc5402d ("ext4: add a function which sets up group blocks ...")
Cc: stable@kernel.org # 3.3
Signed-off-by: Vasily Averin <vvs@virtuozzo.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/fs/ext4/resize.c b/fs/ext4/resize.c
index ff0968b98eb1bb0db0b31b4a1a7ed193d1bf3667..c2901805fe8f09f8ab8ef5d2a0490ba8d9abf1c6 100644 (file)
--- a/fs/ext4/resize.c
+++ b/fs/ext4/resize.c
@@ -459,16 +459,18 @@ static int set_flexbg_block_bitmap(struct super_block *sb, handle_t *handle,
 
                BUFFER_TRACE(bh, "get_write_access");
                err = ext4_journal_get_write_access(handle, bh);
-               if (err)
+               if (err) {
+                       brelse(bh);
                        return err;
+               }
                ext4_debug("mark block bitmap %#04llx (+%llu/%u)\n",
                           first_cluster, first_cluster - start, count2);
                ext4_set_bits(bh->b_data, first_cluster - start, count2);
 
                err = ext4_handle_dirty_metadata(handle, NULL, bh);
+               brelse(bh);
                if (unlikely(err))
                        return err;
-               brelse(bh);
        }
 
        return 0;