From 2dd4a033d69af09dd23dd3011ab72af04aea3962 Mon Sep 17 00:00:00 2001
From: Gronpipmaster <gronpipmaster@gmail.com>
Date: Wed, 10 Sep 2014 01:23:12 +0700
Subject: [PATCH] Bug fixed division 0 in SwapMemory()

---
 mem_linux.go | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/mem_linux.go b/mem_linux.go
index e9e5ae9..9163a01 100644
--- a/mem_linux.go
+++ b/mem_linux.go
@@ -55,7 +55,12 @@ func SwapMemory() (*SwapMemoryStat, error) {
 		Free:  uint64(sysinfo.Freeswap),
 	}
 	ret.Used = ret.Total - ret.Free
-	ret.UsedPercent = float64(ret.Total-ret.Free) / float64(ret.Total) * 100.0
+	//check Infinity
+	if ret.Total != 0 {
+		ret.UsedPercent = float64(ret.Total-ret.Free) / float64(ret.Total) * 100.0
+	} else {
+		ret.UsedPercent = 0
+	}
 
 	return ret, nil
 }