network: wait-online - add a assert

diff --git a/src/network/wait-online/link.c b/src/network/wait-online/link.c
index d0f334761738db62ad02e3aa8d7b3b000dcbd508..e820a7a20f3c4bab45492d27c0b8c330fa5a2289 100644 (file)
--- a/src/network/wait-online/link.c
+++ b/src/network/wait-online/link.c
@@ -15,6 +15,7 @@ int link_new(Manager *m, Link **ret, int ifindex, const char *ifname) {
 
         assert(m);
         assert(ifindex > 0);
+        assert(ifname);
 
         n = strdup(ifname);
         if (!n)