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    Subject[PATCH 23/39] UBI: drop null test before destroy functions
    Date
    Remove unneeded NULL test.

    The semantic patch that makes this change is as follows:
    (http://coccinelle.lip6.fr/)

    // <smpl>
    @@ expression x; @@
    -if (x != NULL)
    \(kmem_cache_destroy\|mempool_destroy\|dma_pool_destroy\)(x);
    // </smpl>

    Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>

    ---
    drivers/mtd/ubi/attach.c | 4 +---
    1 file changed, 1 insertion(+), 3 deletions(-)

    diff --git a/drivers/mtd/ubi/attach.c b/drivers/mtd/ubi/attach.c
    index 68eea5b..c1aaf03 100644
    --- a/drivers/mtd/ubi/attach.c
    +++ b/drivers/mtd/ubi/attach.c
    @@ -1209,9 +1209,7 @@ static void destroy_ai(struct ubi_attach_info *ai)
    }
    }

    - if (ai->aeb_slab_cache)
    - kmem_cache_destroy(ai->aeb_slab_cache);
    -
    + kmem_cache_destroy(ai->aeb_slab_cache);
    kfree(ai);
    }



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