Merge pull request #2522 from roeierez/cleanup_server_error

Cleanup in case of server failed to start

lnd.go

@@ -548,7 +548,10 @@ func Main(cfg *Config, lisCfg ListenerCfg, interceptor signal.Interceptor) error
 		},
 	}
 
-	activeChainControl, err := chainreg.NewChainControl(chainControlCfg)
+	activeChainControl, cleanup, err := chainreg.NewChainControl(chainControlCfg)
+	if cleanup != nil {
+		defer cleanup()
+	}
 	if err != nil {
 		err := fmt.Errorf("unable to create chain control: %v", err)
 		ltndLog.Error(err)