/** Setter for r and s fields of ECDSA_SIG
* \param sig pointer to ECDSA_SIG structure
- * \param r pointer to BIGNUM for r (may be NULL)
- * \param s pointer to BIGNUM for s (may be NULL)
+ * \param r pointer to BIGNUM for r
+ * \param s pointer to BIGNUM for s
*/
int ECDSA_SIG_set0(ECDSA_SIG *sig, BIGNUM *r, BIGNUM *s);