From d52fab812a79e326c5c56340166d1781b88fa7fc Mon Sep 17 00:00:00 2001
From: alla <alla@f7af4fe6-9843-0410-8265-dc069ae4e863>
Date: Tue, 15 Jun 2010 13:08:14 +0000
Subject: [PATCH] fix for bug #66294

---
 T0/AliT0Digitizer.cxx | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/T0/AliT0Digitizer.cxx b/T0/AliT0Digitizer.cxx
index bc4947faedb..1dd37ca9c79 100644
--- a/T0/AliT0Digitizer.cxx
+++ b/T0/AliT0Digitizer.cxx
@@ -313,7 +313,8 @@ void AliT0Digitizer::Exec(Option_t* /*option*/)
 	  TGraph* gr1 = ((TGraph*)fAmpQTC.At(i));
 	  qtCh = gr1->Eval(qt);
 	  fADC0->AddAt(0,i);
-	  fADC->AddAt(qtCh,i);
+	  if(qtCh)
+	    fADC->AddAt(qtCh,i);
 	  //	  sumMult += Int_t ((al*gain[i]/ph2Mip)*50) ;
 	  sumMult += Int_t (qtCh/sumMultCoeff)  ;
 	 
-- 
2.39.3