[CRYPTO] api: Add type-safe spawns
[linux-2.6.git] / crypto / hmac.c
index b521bcd..44187c5 100644 (file)
@@ -172,15 +172,16 @@ static int hmac_digest(struct hash_desc *pdesc, struct scatterlist *sg,
 
 static int hmac_init_tfm(struct crypto_tfm *tfm)
 {
+       struct crypto_hash *hash;
        struct crypto_instance *inst = (void *)tfm->__crt_alg;
        struct crypto_spawn *spawn = crypto_instance_ctx(inst);
        struct hmac_ctx *ctx = hmac_ctx(__crypto_hash_cast(tfm));
 
-       tfm = crypto_spawn_tfm(spawn);
-       if (IS_ERR(tfm))
-               return PTR_ERR(tfm);
+       hash = crypto_spawn_hash(spawn);
+       if (IS_ERR(hash))
+               return PTR_ERR(hash);
 
-       ctx->child = crypto_hash_cast(tfm);
+       ctx->child = hash;
        return 0;
 }