Update bridge.go

Author: mostolog

drivers/bridge/bridge.go

@@ -1109,7 +1109,9 @@ func (d *driver) DeleteEndpoint(nid, eid string) error {
 	// Also make sure defer does not see this error either.
 	if n.config.NDPProxyInterface != "" && n.config.EnableIPv6 {
 		link, err := d.nlh.LinkByName(n.config.NDPProxyInterface)
-		if err == nil {
+		if err != nil {
+			Logrus.Warnf("could not remove ndp neighbour, because could not find link for ndp proxy interface %q: %v", config.NDPProxyInterface, err)
+		} else {			
 			neighbor := netlink.Neigh{
 				LinkIndex:    link.Attrs().Index,
 				Family:       netlink.FAMILY_V6,