dont return nil quantities when calling deleteImages, as this quantity is used regardless of err

pkg/kubelet/eviction/helpers.go

@@ -1001,13 +1001,10 @@ func deleteImages(imageGC ImageGC, reportBytesFreed bool) nodeReclaimFunc {
 	return func() (*resource.Quantity, error) {
 		glog.Infof("eviction manager: attempting to delete unused images")
 		bytesFreed, err := imageGC.DeleteUnusedImages()
-		if err != nil {
-			return nil, err
-		}
 		reclaimed := int64(0)
 		if reportBytesFreed {
 			reclaimed = bytesFreed
 		}
-		return resource.NewQuantity(reclaimed, resource.BinarySI), nil
+		return resource.NewQuantity(reclaimed, resource.BinarySI), err
 	}
 }