From b09af9ec3adec1a3c2d54a323eaedf839b5b6c22 Mon Sep 17 00:00:00 2001
From: abercuci <abercuci@f7af4fe6-9843-0410-8265-dc069ae4e863>
Date: Mon, 10 May 2010 13:08:34 +0000
Subject: [PATCH] fix for bug #66858] (PWG1 train problem for LHC10c data)

---
 PWG1/TRD/AliTRDinfoGen.cxx      | 2 +-
 PWG1/TRD/info/AliTRDtrackInfo.h | 4 ++--
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/PWG1/TRD/AliTRDinfoGen.cxx b/PWG1/TRD/AliTRDinfoGen.cxx
index ee4bc74ae74..8a3319648b2 100644
--- a/PWG1/TRD/AliTRDinfoGen.cxx
+++ b/PWG1/TRD/AliTRDinfoGen.cxx
@@ -332,6 +332,7 @@ void AliTRDinfoGen::UserExec(Option_t *){
       fTrackInfo->SetMC();
       fTrackInfo->SetPDG(fPdg);
       fTrackInfo->SetPrimary(mcParticle->Particle()->IsPrimary());
+      fTrackInfo->SetLabel(label);
       Int_t jref = iref;//, kref = 0;
       while(jref<nRefs){
         ref = mcParticle->GetTrackReference(jref);
@@ -357,7 +358,6 @@ void AliTRDinfoGen::UserExec(Option_t *){
         dedx[in++]=esdTrack->GetTRDslice(il, is);
     for(Int_t il=0; il<AliTRDgeometry::kNlayer; il++) dedx[in++]=esdTrack->GetTRDmomentum(il);
     fTrackInfo->SetSlices(in, dedx);
-    fTrackInfo->SetLabel(label);
     fTrackInfo->SetNumberOfClustersRefit(esdTrack->GetNcls(2));
     // some other Informations which we may wish to store in order to find problematic cases
     fTrackInfo->SetKinkIndex(esdTrack->GetKinkIndex(0));
diff --git a/PWG1/TRD/info/AliTRDtrackInfo.h b/PWG1/TRD/info/AliTRDtrackInfo.h
index b57f620c68a..1e4315fa506 100644
--- a/PWG1/TRD/info/AliTRDtrackInfo.h
+++ b/PWG1/TRD/info/AliTRDtrackInfo.h
@@ -117,10 +117,10 @@ public:
   Bool_t             HasMCinfo() const { return (Bool_t)fMC; }
 
   void               SetCurved(Bool_t curv = kTRUE) {SetBit(kCurv, curv);}
-  void               SetLabel(Int_t lab) {fMC->fLabel = lab; }
+  void               SetLabel(Int_t lab) {if(fMC) fMC->fLabel = lab; }
   void               SetNumberOfClustersRefit(Int_t n) {fNClusters = n;}
   inline void        SetMC();
-  void               SetPDG(Int_t pdg) {fMC->fPDG = pdg; }
+  void               SetPDG(Int_t pdg) {if(fMC) fMC->fPDG = pdg; }
   void               SetPrimary(Bool_t prim = kTRUE) {SetBit(kPrim, prim);}
   void               SetOuterParam(const AliExternalTrackParam *op);
   void               SetStatus(ULong_t stat) {fESD.fStatus = stat;}
-- 
2.43.0