From: Felix Fietkau <nbd@nbd.name>
Date: Sun, 20 Nov 2016 15:40:06 +0000 (+0100)
Subject: ubusd_proto: fix crash when trying to subscribe to system objects
X-Git-Url: http://git.openwrt.org/?p=project%2Fubus.git;a=commitdiff_plain;h=fd61773031402728098800c67f38f83ee04977ad

ubusd_proto: fix crash when trying to subscribe to system objects

Signed-off-by: Felix Fietkau <nbd@nbd.name>
---

diff --git a/ubusd_proto.c b/ubusd_proto.c
index 53e507a..b591384 100644
--- a/ubusd_proto.c
+++ b/ubusd_proto.c
@@ -377,7 +377,7 @@ static int ubusd_handle_add_watch(struct ubus_client *cl, struct ubus_msg_buf *u
 		return UBUS_STATUS_INVALID_ARGUMENT;
 
 	target = ubusd_find_object(blob_get_u32(attr[UBUS_ATTR_TARGET]));
-	if (!target)
+	if (!target || !target->client)
 		return UBUS_STATUS_NOT_FOUND;
 
 	if (cl == target->client)