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    Subject[PATCH 4.18 105/171] ext4: add missing brelse() update_backups()s error path
    Date
    4.18-stable review patch.  If anyone has any objections, please let me know.

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

    From: Vasily Averin <vvs@virtuozzo.com>

    commit ea0abbb648452cdb6e1734b702b6330a7448fcf8 upstream.

    Fixes: ac27a0ec112a ("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>

    ---
    fs/ext4/resize.c | 4 +++-
    1 file changed, 3 insertions(+), 1 deletion(-)

    --- a/fs/ext4/resize.c
    +++ b/fs/ext4/resize.c
    @@ -1124,8 +1124,10 @@ static void update_backups(struct super_
    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)

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