n2rng_unregister_provider
(void) n2rng_unregister_provider(n2rng);
(void) n2rng_unregister_provider(n2rng);
if (n2rng_unregister_provider(n2rng) != DDI_SUCCESS) {
int n2rng_unregister_provider(n2rng_t *n2rng);