dmaengine: drop null test before destroy functions

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>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>

diff --git a/drivers/dma/dmaengine.c b/drivers/dma/dmaengine.c
index 3ff284c8e3d5aef72f229017c883c73cbe13403f..45df9a47c891075ed659dcb93cde6e578c7f486d 100644 (file)
--- a/drivers/dma/dmaengine.c
+++ b/drivers/dma/dmaengine.c
@@ -1066,11 +1066,9 @@ static void dmaengine_destroy_unmap_pool(void)
        for (i = 0; i < ARRAY_SIZE(unmap_pool); i++) {
                struct dmaengine_unmap_pool *p = &unmap_pool[i];
 
-               if (p->pool)
-                       mempool_destroy(p->pool);
+               mempool_destroy(p->pool);
                p->pool = NULL;
-               if (p->cache)
-                       kmem_cache_destroy(p->cache);
+               kmem_cache_destroy(p->cache);
                p->cache = NULL;
        }
 }