return nil
	}

	pvc, ok := attr.GetObject().(*api.PersistentVolumeClaim)
	// if we can't convert then we don't handle this object so just return
	if !ok {
		return nil
	}

	if helper.PersistentVolumeClaimHasClass(pvc) {
		// The user asked for a class.
		return nil
	}

	klog.V(4).Infof("no storage class for claim %s (generate: %s)", pvc.Name, pvc.GenerateName)

	def, err := util.GetDefaultClass(a.lister)