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Subject[PATCH 3.16 136/305] ext4: add missing brelse() in set_flexbg_block_bitmap()'s error path
3.16.63-rc1 review patch.  If anyone has any objections, please let me know.

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

From: Vasily Averin <vvs@virtuozzo.com>

commit cea5794122125bf67559906a0762186cf417099c upstream.

Fixes: 33afdcc5402d ("ext4: add a function which sets up group 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/resize.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)

--- a/fs/ext4/resize.c
+++ b/fs/ext4/resize.c
@@ -442,16 +442,18 @@ static int set_flexbg_block_bitmap(struc

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", block,
block - start, count2);
ext4_set_bits(bh->b_data, block - start, count2);

err = ext4_handle_dirty_metadata(handle, NULL, bh);
+ brelse(bh);
if (unlikely(err))
return err;
- brelse(bh);
}

return 0;
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