crypto: mediatek - use crypto_shash_tfm_digest()

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.

Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

diff --git a/drivers/crypto/mediatek/mtk-sha.c b/drivers/crypto/mediatek/mtk-sha.c
index bd6309e..da3f0b8 100644 (file)
--- a/drivers/crypto/mediatek/mtk-sha.c
+++ b/drivers/crypto/mediatek/mtk-sha.c
@@ -805,12 +805,9 @@ static int mtk_sha_setkey(struct crypto_ahash *tfm, const u8 *key,
        size_t ds = crypto_shash_digestsize(bctx->shash);
        int err, i;
 
-       SHASH_DESC_ON_STACK(shash, bctx->shash);
-
-       shash->tfm = bctx->shash;
-
        if (keylen > bs) {
-               err = crypto_shash_digest(shash, key, keylen, bctx->ipad);
+               err = crypto_shash_tfm_digest(bctx->shash, key, keylen,
+                                             bctx->ipad);
                if (err)
                        return err;
                keylen = ds;