crypto: marvell/cesa - Use dma_pool_zalloc

Dma_pool_zalloc combines dma_pool_alloc and memset 0.  The semantic patch
that makes this transformation is as follows: (http://coccinelle.lip6.fr/)

// <smpl>
@@
expression d,e;
statement S;
@@

        d =
-            dma_pool_alloc
+            dma_pool_zalloc
             (...);
        if (!d) S
-       memset(d, 0, sizeof(*d));
// </smpl>

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Acked-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

diff --git a/drivers/crypto/marvell/tdma.c b/drivers/crypto/marvell/tdma.c
index 7642798..0ad8f1e 100644 (file)
--- a/drivers/crypto/marvell/tdma.c
+++ b/drivers/crypto/marvell/tdma.c
@@ -99,12 +99,11 @@ mv_cesa_dma_add_desc(struct mv_cesa_tdma_chain *chain, gfp_t flags)
        struct mv_cesa_tdma_desc *new_tdma = NULL;
        dma_addr_t dma_handle;
 
-       new_tdma = dma_pool_alloc(cesa_dev->dma->tdma_desc_pool, flags,
-                                 &dma_handle);
+       new_tdma = dma_pool_zalloc(cesa_dev->dma->tdma_desc_pool, flags,
+                                  &dma_handle);
        if (!new_tdma)
                return ERR_PTR(-ENOMEM);
 
-       memset(new_tdma, 0, sizeof(*new_tdma));
        new_tdma->cur_dma = dma_handle;
        if (chain->last) {
                chain->last->next_dma = cpu_to_le32(dma_handle);