Revert refactoring changes to controller checks

api/cluster/controller.go

@@ -225,12 +225,10 @@ func (c *controller) Deploy(ctx context.Context, modelService *models.Service) (
 
 	// check the cluster to see if the inference service has already been deployed
 	s, err := c.kserveClient.InferenceServices(modelService.Namespace).Get(modelService.Name, metav1.GetOptions{})
-	if err != nil && !kerrors.IsNotFound(err) {
-		return nil, errors.Wrapf(err, "unable to check status of inference service: %s", s.Name)
-	}
-
-	// create a new inference service if it has not been created
-	if s == nil {
+	if err != nil {
+		if !kerrors.IsNotFound(err) {
+			return nil, errors.Wrapf(err, "unable to check status of inference service: %s", s.Name)
+		}
 		s, err = c.kserveClient.InferenceServices(modelService.Namespace).Create(spec)
 		if err != nil {
 			log.Errorf("unable to create inference service %s: %v", isvcName, err)