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crypto: Use zeroing memory allocator instead of allocator/memset 

Use dma_zalloc_coherent for allocating zeroed
memory and remove unnecessary memset function.

Done using Coccinelle.
Generated-by: scripts/coccinelle/api/alloc/kzalloc-simple.cocci
0-day tested with no failures.

Signed-off-by: Himanshu Jha <himanshujha199640@gmail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Himanshu Jha 2017-12-31 17:54:23 +05:30 committed by Herbert Xu
parent b7dac37318
commit 75d68369b5
2 changed files with 6 additions and 9 deletions
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8
drivers/crypto/amcc/crypto4xx_core.c
View File

@ -282,14 +282,12 @@ static u32 crypto4xx_put_pd_to_pdr(struct crypto4xx_device *dev, u32 idx)
*/
static u32 crypto4xx_build_gdr(struct crypto4xx_device *dev)
{
dev->gdr = dma_alloc_coherent(dev->core_dev->device,
sizeof(struct ce_gd) * PPC4XX_NUM_GD,
&dev->gdr_pa, GFP_ATOMIC);
dev->gdr = dma_zalloc_coherent(dev->core_dev->device,
sizeof(struct ce_gd) * PPC4XX_NUM_GD,
&dev->gdr_pa, GFP_ATOMIC);
if (!dev->gdr)
return -ENOMEM;
memset(dev->gdr, 0, sizeof(struct ce_gd) * PPC4XX_NUM_GD);
return 0;
}

7
drivers/crypto/ixp4xx_crypto.c
View File

@ -260,12 +260,11 @@ static int setup_crypt_desc(void)
{
struct device *dev = &pdev->dev;
BUILD_BUG_ON(sizeof(struct crypt_ctl) != 64);
crypt_virt = dma_alloc_coherent(dev,
NPE_QLEN * sizeof(struct crypt_ctl),
&crypt_phys, GFP_ATOMIC);
crypt_virt = dma_zalloc_coherent(dev,
NPE_QLEN * sizeof(struct crypt_ctl),
&crypt_phys, GFP_ATOMIC);
if (!crypt_virt)
return -ENOMEM;
memset(crypt_virt, 0, NPE_QLEN * sizeof(struct crypt_ctl));
return 0;
}