Small readability tweak in old_dsa_priv_decode()

Explicitly check against NULL and turn early return into goto err.

ok beck jsing

diff --git a/lib/libcrypto/dsa/dsa_ameth.c b/lib/libcrypto/dsa/dsa_ameth.c
index b7a05e7..495c32c 100644 (file)
--- a/lib/libcrypto/dsa/dsa_ameth.c
+++ b/lib/libcrypto/dsa/dsa_ameth.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: dsa_ameth.c,v 1.40 2023/03/04 21:02:21 tb Exp $ */
+/* $OpenBSD: dsa_ameth.c,v 1.41 2023/03/04 21:08:14 tb Exp $ */
 /* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
  * project 2006.
  */
@@ -506,9 +506,9 @@ old_dsa_priv_decode(EVP_PKEY *pkey, const unsigned char **pder, int derlen)
        BN_CTX *ctx = NULL;
        BIGNUM *j, *p1, *newp1, *powg;
 
-       if (!(dsa = d2i_DSAPrivateKey(NULL, pder, derlen))) {
+       if ((dsa = d2i_DSAPrivateKey(NULL, pder, derlen)) == NULL) {
                DSAerror(ERR_R_DSA_LIB);
-               return 0;
+               goto err;
        }
 
        if (!dsa_check_key(dsa))