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    Subject[ 06/50] dm snapshot: fix error return code in snapshot_ctr
    Date
    3.4-stable review patch.  If anyone has any objections, please let me know.

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

    From: Wei Yongjun <yongjun_wei@trendmicro.com.cn>

    commit 09e8b813897a0f85bb401435d009228644c81214 upstream.

    Return -ENOMEM instead of success if unable to allocate pending
    exception mempool in snapshot_ctr.

    Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
    Signed-off-by: Alasdair G Kergon <agk@redhat.com>
    Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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

    --- a/drivers/md/dm-snap.c
    +++ b/drivers/md/dm-snap.c
    @@ -1117,6 +1117,7 @@ static int snapshot_ctr(struct dm_target
    s->pending_pool = mempool_create_slab_pool(MIN_IOS, pending_cache);
    if (!s->pending_pool) {
    ti->error = "Could not allocate mempool for pending exceptions";
    + r = -ENOMEM;
    goto bad_pending_pool;
    }




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