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ext4: add missing brelse() update_backups()'s error path

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commit ea0abbb648 upstream.

Fixes: ac27a0ec11 ("ext4: initial copy of files from ext3")
Signed-off-by: Vasily Averin <vvs@virtuozzo.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Cc: stable@kernel.org # 2.6.19
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Vasily Averin
2018-11-03 17:11:19 -04:00
committed by Greg Kroah-Hartman
parent ebbc6fce6d
commit f7b6459e51
1 changed files with 3 additions and 1 deletions
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4
fs/ext4/resize.c
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@@ -1124,8 +1124,10 @@ static void update_backups(struct super_block *sb, sector_t blk_off, char *data,
backup_block, backup_block -
ext4_group_first_block_no(sb, group));
BUFFER_TRACE(bh, "get_write_access");
if ((err = ext4_journal_get_write_access(handle, bh)))
if ((err = ext4_journal_get_write_access(handle, bh))) {
brelse(bh);
break;
}
lock_buffer(bh);
memcpy(bh->b_data, data, size);
if (rest)