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crypto: sun8i-ss - fix a NULL vs IS_ERR() check in sun8i_ss_hashkey

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The crypto_alloc_shash() function never returns NULL. It returns error
pointers.

Fixes: 801b7d572c ("crypto: sun8i-ss - add hmac(sha1)")
Signed-off-by: Peng Wu <wupeng58@huawei.com>
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Peng Wu 2022-06-02 07:22:34 +00:00 committed by Herbert Xu
parent b03c0dc078
commit 7e8df1fc2d
1 changed files with 2 additions and 2 deletions
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4
drivers/crypto/allwinner/sun8i-ss/sun8i-ss-hash.c
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@ -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);