Merge pull request kubernetes#115982 from peaaceChoi/master

Update toplogy keyset initialization

pkg/volume/csi/nodeinfomanager/nodeinfomanager.go

@@ -526,10 +526,7 @@ func (nim *nodeInfoManager) installDriverToCSINode(
 		return fmt.Errorf("error getting CSI client")
 	}
 
-	topologyKeys := make(sets.String)
-	for k := range topology {
-		topologyKeys.Insert(k)
-	}
+	topologyKeys := sets.StringKeySet(topology)
 
 	specModified := true
 	// Clone driver list, omitting the driver that matches the given driverName