Fix returning ctrl.Result and error preventing backoff (#50)

internal/controller/nbresource_controller.go

@@ -52,6 +52,12 @@ func (r *NBResourceReconciler) Reconcile(ctx context.Context, req ctrl.Request)
 	originalResource := nbResource.DeepCopy()
 
 	defer func() {
+		if err != nil {
+			// double check result is nil, otherwise error is not printed
+			// and exponential backoff doesn't work properly
+			res = ctrl.Result{}
+			return
+		}
 		if originalResource.DeletionTimestamp != nil && len(nbResource.Finalizers) == 0 {
 			return
 		}