crypto: ccree - 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.

Cc: Gilad Ben-Yossef <gilad@benyossef.com>
Signed-off-by: Eric Biggers <ebiggers@google.com>
Acked-by: Gilad Ben-Yossef <gilad@benyossef.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

diff --git a/drivers/crypto/ccree/cc_cipher.c b/drivers/crypto/ccree/cc_cipher.c
index a84335328f371c28684cb0d7b2de1da9da6c095c..872ea3ff1c6ba73f660479efb254a36ac6d405f6 100644 (file)
--- a/drivers/crypto/ccree/cc_cipher.c
+++ b/drivers/crypto/ccree/cc_cipher.c
@@ -427,12 +427,9 @@ static int cc_cipher_setkey(struct crypto_skcipher *sktfm, const u8 *key,
                int key_len = keylen >> 1;
                int err;
 
-               SHASH_DESC_ON_STACK(desc, ctx_p->shash_tfm);
-
-               desc->tfm = ctx_p->shash_tfm;
-
-               err = crypto_shash_digest(desc, ctx_p->user.key, key_len,
-                                         ctx_p->user.key + key_len);
+               err = crypto_shash_tfm_digest(ctx_p->shash_tfm,
+                                             ctx_p->user.key, key_len,
+                                             ctx_p->user.key + key_len);
                if (err) {
                        dev_err(dev, "Failed to hash ESSIV key.\n");
                        return err;