From: Felix Fietkau <nbd@openwrt.org>
Date: Fri, 14 Dec 2012 20:27:52 +0000 (+0100)
Subject: libubus: check if subscriber cb is non-NULL before calling it
X-Git-Url: http://git.archive.openwrt.org/?p=project%2Fubus.git;a=commitdiff_plain;h=e9431842e2fd73c4f96542cf71f40ae4c4c5c930;ds=sidebyside

libubus: check if subscriber cb is non-NULL before calling it

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

diff --git a/libubus-sub.c b/libubus-sub.c
index 8ffb018..167630c 100644
--- a/libubus-sub.c
+++ b/libubus-sub.c
@@ -21,7 +21,8 @@ static int ubus_subscriber_cb(struct ubus_context *ctx, struct ubus_object *obj,
 	struct ubus_subscriber *s;
 
 	s = container_of(obj, struct ubus_subscriber, obj);
-	s->cb(ctx, obj, req, method, msg);
+	if (s->cb)
+		s->cb(ctx, obj, req, method, msg);
 	return 0;
 }