From ae735a1189969afb7b66a7785cb5d7dd1729e9d2 Mon Sep 17 00:00:00 2001
From: Dave Chen <dave.jungler@gmail.com>
Date: Tue, 16 Jun 2020 13:23:05 +0800
Subject: [PATCH] scheduler_perf: fix the nil pointer dereference

Signed-off-by: Dave Chen <dave.chen@arm.com>
---
 test/integration/scheduler_perf/util.go | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/test/integration/scheduler_perf/util.go b/test/integration/scheduler_perf/util.go
index f0cd294da8a..e440f88c0e7 100644
--- a/test/integration/scheduler_perf/util.go
+++ b/test/integration/scheduler_perf/util.go
@@ -179,7 +179,10 @@ func collectHistogram(metric string, labels map[string]string) *DataItem {
 		klog.Error(err)
 		return nil
 	}
-
+	if hist.Histogram == nil {
+		klog.Errorf("metric %q is not a Histogram metric", metric)
+		return nil
+	}
 	if err := hist.Validate(); err != nil {
 		klog.Error(err)
 		return nil