net config restinterface along with mvlan delete rest api

Change-Id: I4d8f5829d4e8b08be7981716cb3cde26cc5a507c
diff --git a/internal/pkg/controller/controller.go b/internal/pkg/controller/controller.go
index 3ed1c04..1e76e9e 100644
--- a/internal/pkg/controller/controller.go
+++ b/internal/pkg/controller/controller.go
@@ -544,7 +544,7 @@
 	d, err := v.GetDevice(deviceID)
 	if err != nil {
 		logger.Errorw(ctx, "Device Not Found", log.Fields{"Device": deviceID, "Error": err})
-		return nil, err
+		return nil, nil
 	}
 	return d.GetAllFlows(), nil
 }