From f68fa94ece631b0399184631ba8aea6d71634c6c Mon Sep 17 00:00:00 2001
From: Ivan Borshukov <bo0merzzz@gmail.com>
Date: Tue, 28 Feb 2017 10:00:13 +0200
Subject: [PATCH] mozzle: Avoid division by zero

---
 metric.go | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/metric.go b/metric.go
index 7d9187c..fff41d4 100644
--- a/metric.go
+++ b/metric.go
@@ -39,6 +39,9 @@ func forApp(app application, m Metric) Metric {
 }
 
 func ratio(part, whole uint64) float64 {
+	if whole == 0 {
+		return 0.0
+	}
 	return float64(part) / float64(whole)
 }