CRYPTO_free_ex_data(dsa_meth, r, &r->ex_data);
CRYPTO_free_ex_data(CRYPTO_EX_INDEX_DSA, r, &r->ex_data);
void DSA_free(DSA *r)	{	const DSA_METHOD *meth;	int i;	if (r == NULL) return;	i=CRYPTO_add(&r->references,-1,CRYPTO_LOCK_DSA);#ifdef REF_PRINT	REF_PRINT("DSA",r);#endif	if (i > 0) return;#ifdef REF_CHECK	if (i < 0)		{		fprintf(stderr,"DSA_free, bad reference count\n");		abort();		}#endif	meth = ENGINE_get_DSA(r->engine);	if(meth->finish) meth->finish(r);	ENGINE_finish(r->engine);	CRYPTO_free_ex_data(dsa_meth, r, &r->ex_data);	if (r->p != NULL) BN_clear_free(r->p);	if (r->q != NULL) BN_clear_free(r->q);	if (r->g != NULL) BN_clear_free(r->g);	if (r->pub_key != NULL) BN_clear_free(r->pub_key);	if (r->priv_key != NULL) BN_clear_free(r->priv_key);	if (r->kinv != NULL) BN_clear_free(r->kinv);	if (r->r != NULL) BN_clear_free(r->r);	OPENSSL_free(r);	}