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    Subject[ 89/95] dm thin metadata: unlock superblock in init_pmd error path
    3.2-stable review patch.  If anyone has any objections, please let me know.

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

    From: Joe Thornber <ejt@redhat.com>

    commit 4469a5f387fdde956894137751a41473618a4a52 upstream.

    If dm_sm_disk_create() fails the superblock must be unlocked.

    Signed-off-by: Joe Thornber <ejt@redhat.com>
    Acked-by: Mike Snitzer <snitzer@redhat.com>
    Signed-off-by: Alasdair G Kergon <agk@redhat.com>
    Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

    ---
    drivers/md/dm-thin-metadata.c | 1 +
    1 file changed, 1 insertion(+)

    --- a/drivers/md/dm-thin-metadata.c
    +++ b/drivers/md/dm-thin-metadata.c
    @@ -385,6 +385,7 @@ static int init_pmd(struct dm_pool_metad
    data_sm = dm_sm_disk_create(tm, nr_blocks);
    if (IS_ERR(data_sm)) {
    DMERR("sm_disk_create failed");
    + dm_tm_unlock(tm, sblock);
    r = PTR_ERR(data_sm);
    goto bad;
    }



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