interface: ensure that l3_dev gets set whenever the proto handler marks the interface...

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

diff --git a/interface.c b/interface.c
index c861b7d..684fd22 100644 (file)
--- a/interface.c
+++ b/interface.c
@@ -581,6 +581,9 @@ interface_proto_cb(struct interface_proto_state *state, enum interface_proto_eve
                        return;
                }
 
+               if (!iface->l3_dev.dev)
+                       interface_set_l3_dev(iface, iface->main_dev.dev);
+
                interface_ip_set_enabled(&iface->config_ip, true);
                system_flush_routes();
                iface->state = IFS_UP;