- * Returns 0 if successful, otherwise a positive errno value. */
-int
-rtnetlink_link_notifier_register(struct nln_notifier *notifier,
- rtnetlink_link_notify_func *cb, void *aux)
+ * Returns an initialized nln_notifier if successful, NULL otherwise. */
+struct nln_notifier *
+rtnetlink_link_notifier_create(rtnetlink_link_notify_func *cb, void *aux)