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Subject[PATCH] crypto: sun8i-ss - fix a NULL vs IS_ERR() check in sun8i_ss_hashkey
Date
The crypto_alloc_shash() function never returns NULL. It returns error
pointers.

Fixes: 801b7d572c0a ("crypto: sun8i-ss - add hmac(sha1)")
Signed-off-by: Peng Wu <wupeng58@huawei.com>
Reported-by: Hulk Robot <hulkci@huawei.com>
---
drivers/crypto/allwinner/sun8i-ss/sun8i-ss-hash.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/crypto/allwinner/sun8i-ss/sun8i-ss-hash.c b/drivers/crypto/allwinner/sun8i-ss/sun8i-ss-hash.c
index ac417a6b39e5..90334e435673 100644
--- a/drivers/crypto/allwinner/sun8i-ss/sun8i-ss-hash.c
+++ b/drivers/crypto/allwinner/sun8i-ss/sun8i-ss-hash.c
@@ -30,8 +30,8 @@ static int sun8i_ss_hashkey(struct sun8i_ss_hash_tfm_ctx *tfmctx, const u8 *key,
int ret = 0;

xtfm = crypto_alloc_shash("sha1", 0, CRYPTO_ALG_NEED_FALLBACK);
- if (!xtfm)
- return -ENOMEM;
+ if (IS_ERR(xtfm))
+ return PTR_ERR(xtfm);

len = sizeof(*sdesc) + crypto_shash_descsize(xtfm);
sdesc = kmalloc(len, GFP_KERNEL);
--
2.17.1
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