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    Subject[PATCH 4.19 141/205] ext4: fix possible leak of s_journal_flag_rwsem in error path
    Date
    4.19-stable review patch.  If anyone has any objections, please let me know.

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

    From: Vasily Averin <vvs@virtuozzo.com>

    commit af18e35bfd01e6d65a5e3ef84ffe8b252d1628c5 upstream.

    Fixes: c8585c6fcaf2 ("ext4: fix races between changing inode journal ...")
    Signed-off-by: Vasily Averin <vvs@virtuozzo.com>
    Signed-off-by: Theodore Ts'o <tytso@mit.edu>
    Cc: stable@kernel.org # 4.7
    Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

    ---
    fs/ext4/super.c | 1 +
    1 file changed, 1 insertion(+)

    --- a/fs/ext4/super.c
    +++ b/fs/ext4/super.c
    @@ -4509,6 +4509,7 @@ failed_mount6:
    percpu_counter_destroy(&sbi->s_freeinodes_counter);
    percpu_counter_destroy(&sbi->s_dirs_counter);
    percpu_counter_destroy(&sbi->s_dirtyclusters_counter);
    + percpu_free_rwsem(&sbi->s_journal_flag_rwsem);
    failed_mount5:
    ext4_ext_release(sb);
    ext4_release_system_zone(sb);

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