resolver: Do not try to update service if server is not set

diff --git a/src/resolver.c b/src/resolver.c
index f27f22c..58af2f7 100644 (file)
--- a/src/resolver.c
+++ b/src/resolver.c
@@ -283,7 +283,7 @@ static int append_resolver(const char *interface, const char *domain,
                 * that are automagically added via netlink (lifetime > 0)
                 */
                index = connman_inet_ifindex(interface);
-               if (index >= 0) {
+               if (server != NULL && index >= 0) {
                        struct connman_service *service;
                        service = __connman_service_lookup_from_index(index);
                        if (service != NULL)