From 872ca73cadf589bd4adf76d0fac9b07c52ac75c8 Mon Sep 17 00:00:00 2001
From: Marcel van Lohuizen <mpvl@golang.org>
Date: Fri, 18 Mar 2016 16:41:51 +0100
Subject: [PATCH] runtime: don't assume b.N > 0

Change-Id: I2e26717f2563d7633ffd15f4adf63c3d0ee3403f
Reviewed-on: https://go-review.googlesource.com/20856
Run-TryBot: Marcel van Lohuizen <mpvl@golang.org>
Reviewed-by: Russ Cox <rsc@golang.org>
---
 src/runtime/proc_test.go | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/runtime/proc_test.go b/src/runtime/proc_test.go
index 7064b0edd8..fd12945be0 100644
--- a/src/runtime/proc_test.go
+++ b/src/runtime/proc_test.go
@@ -428,6 +428,9 @@ func TestPingPongHog(t *testing.T) {
 }
 
 func BenchmarkPingPongHog(b *testing.B) {
+	if b.N == 0 {
+		return
+	}
 	defer runtime.GOMAXPROCS(runtime.GOMAXPROCS(1))
 
 	// Create a CPU hog
-- 
2.48.1