From 5d1c3df8924d4b8aba9f5d4450d6204d218ee44b Mon Sep 17 00:00:00 2001
From: masera <masera@f7af4fe6-9843-0410-8265-dc069ae4e863>
Date: Sat, 19 Nov 2011 22:11:02 +0000
Subject: [PATCH] Added protection in CheckDeadZone

---
 ITS/AliITStrackerMI.cxx | 1 +
 1 file changed, 1 insertion(+)

diff --git a/ITS/AliITStrackerMI.cxx b/ITS/AliITStrackerMI.cxx
index f1484fb2666..520c7cbbcbb 100644
--- a/ITS/AliITStrackerMI.cxx
+++ b/ITS/AliITStrackerMI.cxx
@@ -4788,6 +4788,7 @@ Int_t AliITStrackerMI::CheckDeadZone(AliITStrackMI *track,
     }
   }
 
+  if(zlocmin>zlocmax)return 0;
   Int_t nChipsInRoad = segm->GetChipsInLocalWindow(chipsInRoad,zlocmin,zlocmax,xlocmin,xlocmax);
   AliDebug(2,Form("lay %d nChipsInRoad %d",ilayer,nChipsInRoad));
   if (!nChipsInRoad) return 0;
-- 
2.43.0