removal of object on removal of IP

dongle.c

@@ -16,7 +16,6 @@
 #include "dongle_infrastructure.h"
 #include "dongle.h"
 
-
 struct ubus_context *global_ctx;
 int debug;
 struct uloop_timeout timeout = { .cb = devices_status };
@@ -108,6 +107,12 @@ int add_device(struct device *new_dev)
 			free(dev->ip);
 		dev->ip = new_dev->ip;
 
+		if (!dev->ubus_obj && dev->ip)
+			dev->ubus_obj = dongle_create_dynamic_object(new_dev);
+		else if (dev->ubus_obj && !dev->ip) {
+			unpublish_ubus_object(global_ctx, dev->ubus_obj);
+			dongle_destroy_dynamic_object(dev->ubus_obj);
+		}
 		dev->present = true;
 		goto already_present;
 	}