fix repocard issues (#21)

Signed-off-by: Vasiliy Tolstov <v.tolstov@unistack.org>

util/mdns/client.go

@@ -122,12 +122,13 @@ func Listen(entries chan<- *ServiceEntry, exit chan struct{}) error {
 
 	ip := make(map[string]*ServiceEntry)
 
+loop:
 	for {
 		select {
 		case <-exit:
-			return nil
+			break loop
 		case <-client.closedCh:
-			return nil
+			break loop
 		case m := <-msgCh:
 			e := messageToEntry(m, ip)
 			if e == nil {

util/mdns/server.go

@@ -163,7 +163,9 @@ func (s *Server) Shutdown() error {
 
 	s.shutdown = true
 	close(s.shutdownCh)
-	s.unregister()
+	if err := s.unregister(); err != nil {
+		return err
+	}
 
 	if s.ipv4List != nil {
 		s.ipv4List.Close()