Instead of manually allocating a 'struct shash_desc' on the stack and
calling crypto_shash_digest(), switch to using the new helper function
crypto_shash_tfm_digest() which does this for us.
Cc: Jesper Nilsson <jesper.nilsson@axis.com>
Cc: Lars Persson <lars.persson@axis.com>
Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
blocksize = crypto_tfm_alg_blocksize(crypto_ahash_tfm(tfm));
if (keylen > blocksize) {
- SHASH_DESC_ON_STACK(hdesc, tfm_ctx->child_hash);
-
- hdesc->tfm = tfm_ctx->child_hash;
-
tfm_ctx->hmac_key_length = blocksize;
- ret = crypto_shash_digest(hdesc, key, keylen,
- tfm_ctx->hmac_key);
+
+ ret = crypto_shash_tfm_digest(tfm_ctx->child_hash, key, keylen,
+ tfm_ctx->hmac_key);
if (ret)
return ret;
-
} else {
memcpy(tfm_ctx->hmac_key, key, keylen);
tfm_ctx->hmac_key_length = keylen;