libubus: Check if remove callback exists before call it
[project/ubus.git] / libubus-obj.c
index ed18ca9..bdb2e03 100644 (file)
@@ -27,7 +27,8 @@ ubus_process_unsubscribe(struct ubus_context *ctx, struct ubus_msghdr *hdr,
                return;
 
        s = container_of(obj, struct ubus_subscriber, obj);
-       s->remove_cb(ctx, s, blob_get_u32(attrbuf[UBUS_ATTR_TARGET]));
+       if (s->remove_cb)
+               s->remove_cb(ctx, s, blob_get_u32(attrbuf[UBUS_ATTR_TARGET]));
 }
 
 static void