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-rw-r--r--crypto/ahash.c8
1 files changed, 7 insertions, 1 deletions
diff --git a/crypto/ahash.c b/crypto/ahash.c
index 9f98956b17fc..ba5292d69ebd 100644
--- a/crypto/ahash.c
+++ b/crypto/ahash.c
@@ -162,6 +162,12 @@ static int ahash_setkey(struct crypto_ahash *tfm, const u8 *key,
return ahash->setkey(tfm, key, keylen);
}
+static int ahash_nosetkey(struct crypto_ahash *tfm, const u8 *key,
+ unsigned int keylen)
+{
+ return -ENOSYS;
+}
+
int crypto_ahash_import(struct ahash_request *req, const u8 *in)
{
struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
@@ -194,7 +200,7 @@ static int crypto_init_ahash_ops(struct crypto_tfm *tfm, u32 type, u32 mask)
crt->update = alg->update;
crt->final = alg->final;
crt->digest = alg->digest;
- crt->setkey = ahash_setkey;
+ crt->setkey = alg->setkey ? ahash_setkey : ahash_nosetkey;
crt->digestsize = alg->digestsize;
return 0;