Fix resource quota controller shutting down its worker threads

pkg/controller/resourcequota/resource_quota_controller.go

@@ -163,11 +163,10 @@ func (rq *ResourceQuotaController) enqueueResourceQuota(obj interface{}) {
 // worker runs a worker thread that just dequeues items, processes them, and marks them done.
 // It enforces that the syncHandler is never invoked concurrently with the same key.
 func (rq *ResourceQuotaController) worker() {
-	for {
-		func() {
+	workFunc := func() bool {
 		key, quit := rq.queue.Get()
 		if quit {
-				return
+			return true
 		}
 		defer rq.queue.Done(key)
 		err := rq.syncHandler(key.(string))
@@ -175,7 +174,13 @@ func (rq *ResourceQuotaController) worker() {
 			utilruntime.HandleError(err)
 			rq.queue.Add(key)
 		}
-		}()
+		return false
+	}
+	for {
+		if quit := workFunc(); quit {
+			glog.Infof("resource quota controller worker shutting down")
+			return
+		}
 	}
 }