From 8e770944d155d21b727f73ccf5256ac60314188f Mon Sep 17 00:00:00 2001
From: changzhen <changzhen5@huawei.com>
Date: Thu, 22 Jul 2021 17:38:11 +0800
Subject: [PATCH] drop nil key

Signed-off-by: changzhen <changzhen5@huawei.com>
---
 pkg/util/worker.go | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/pkg/util/worker.go b/pkg/util/worker.go
index 6da7affd0..b9347e6fc 100644
--- a/pkg/util/worker.go
+++ b/pkg/util/worker.go
@@ -107,6 +107,10 @@ func (w *asyncWorker) EnqueueRateLimited(obj runtime.Object) {
 		return
 	}
 
+	if key == nil {
+		return
+	}
+
 	w.AddRateLimited(key)
 }