handle deallocate memory on return

From:

alessio211734 <alessio211734@yahoo.it>

Newsgroups:

comp.lang.c++

Date:

Tue, 30 Jun 2009 01:25:40 -0700 (PDT)

Message-ID:

<8cb63728-3900-4c8f-a4ce-66675ee09d48@h11g2000yqb.googlegroups.com>

I would like avoid to free memory every time that my function return.

I would like avoid to use goto c instruction to jump a code where I
call
EVP_PKEY_free(pkey_fsys);
EVP_PKEY_free(pkey_cert);
to free memory (openssl function)

My code:

if (!(EVP_PKEY_cmp_parameters(pkey_fsys,pkey_cert)))
                 {
                     if (pkey_fsys->type != pkey_cert->type)
                     {
                         printf("Public keys type mismatch\n");
                         m_pContext->sendError
(RSA_KEY_MAN_LOAD_CERT,BAD_PUBLIC_KEY);
                         EVP_PKEY_free(pkey_fsys);
                         EVP_PKEY_free(pkey_cert);
                         return;
                     }
                     if (BN_cmp(pkey_fsys->pkey.rsa->e,pkey_cert-

pkey.rsa->n) != 0)

                     {
                         printf("Public keys exponent mismatch\n");
                         m_pContext->sendError
(RSA_KEY_MAN_LOAD_CERT,PUBLIC_EXP_MISMATCH);
                         EVP_PKEY_free(pkey_fsys);
                         EVP_PKEY_free(pkey_cert);
                         return;
                     }
                     if (BN_cmp(pkey_fsys->pkey.rsa->n,pkey_cert-

pkey.rsa->n) != 0)

                     {
                         printf("Public keys modulus mismatch\n");
                         m_pContext->sendError
(RSA_KEY_MAN_LOAD_CERT,PUBLIC_MOD_MISMATCH);
                         EVP_PKEY_free(pkey_fsys);
                         EVP_PKEY_free(pkey_cert);
                         return;
                     }
                 }
                 EVP_PKEY_free(pkey_fsys);
                 EVP_PKEY_free(pkey_cert);
             }

Please suggest me a better solution.