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.law...@lip6.fr>
---
drivers/crypto/marvell/tdma.c | 5 ++---
1 file changed, 2 insertions(+), 3 deletions(-)
diff --git a/drivers/crypto/marvell/tdma.c b/drivers/crypto/marvell/tdma.c
index 7642798..0ad8f1e 100644
--- 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);
--
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