Handle potential nil pointer in handleSnapshot

If the dataimportcron status has an empty
currentImports, the returned PVC will be nil and
handleSnapshot will be called. handleSnapshot
should check for nil PVC before proceeding.

Signed-off-by: Alexander Wels <awels@redhat.com>

pkg/controller/dataimportcron-controller.go

@@ -686,6 +686,9 @@ func (r *DataImportCronReconciler) handleCronFormat(ctx context.Context, dataImp
 }
 
 func (r *DataImportCronReconciler) handleSnapshot(ctx context.Context, dataImportCron *cdiv1.DataImportCron, pvc *corev1.PersistentVolumeClaim, desiredStorageClass *storagev1.StorageClass) error {
+	if pvc == nil {
+		return nil
+	}
 	if sc := pvc.Spec.StorageClassName; sc != nil && *sc != desiredStorageClass.Name {
 		r.log.Info("Attempt to change storage class, will not try making a snapshot of the old PVC")
 		return nil