From 4fa6297ae6401c74a85cf29bf6609bc8f76aee95 Mon Sep 17 00:00:00 2001
From: laphecet <laurent.aphecetche@gmail.com>
Date: Wed, 4 Mar 2015 09:27:09 +0100
Subject: [PATCH] Adding small protection

---
 MUON/MUONevaluation/AliMUONCheck.cxx | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/MUON/MUONevaluation/AliMUONCheck.cxx b/MUON/MUONevaluation/AliMUONCheck.cxx
index 0ae52324e8d..d892c78a3af 100644
--- a/MUON/MUONevaluation/AliMUONCheck.cxx
+++ b/MUON/MUONevaluation/AliMUONCheck.cxx
@@ -309,7 +309,10 @@ AliMUONCheck::CheckESD(Bool_t pdc06TriggerResponse)
   
   AliInfo(Form("Terminate %s:", GetName())) ;
   
-  effMatch=100*fnTrackTrig/ftracktot;
+  if ( ftracktot > 0 )
+  {
+    effMatch=100*fnTrackTrig/ftracktot;
+  }
   
   if(pdc06TriggerResponse)
   {
-- 
2.39.3