X.509: use crypto_shash_digest()

Use crypto_shash_digest() instead of crypto_shash_init() followed by
crypto_shash_finup().  (For simplicity only; they are equivalent.)

Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: David Howells <dhowells@redhat.com>

1 files changed, 1 insertions, 5 deletions

diff --git a/crypto/asymmetric_keys/x509_public_key.c b/crypto/asymmetric_keys/x509_public_key.c
index c9013582c026..e67fd29fbd11 100644
--- a/crypto/asymmetric_keys/x509_public_key.c
+++ b/crypto/asymmetric_keys/x509_public_key.c
@@ -79,11 +79,7 @@ int x509_get_sig_params(struct x509_certificate *cert)
         desc->tfm = tfm;
         desc->flags = CRYPTO_TFM_REQ_MAY_SLEEP;
 
-        ret = crypto_shash_init(desc);
-        if (ret < 0)
-                goto error_2;
-        might_sleep();
-        ret = crypto_shash_finup(desc, cert->tbs, cert->tbs_size, sig->digest);
+        ret = crypto_shash_digest(desc, cert->tbs, cert->tbs_size, sig->digest);
         if (ret < 0)
                 goto error_2;