protection agains null clusters

diff --git a/PWG4/PartCorrBase/AliCalorimeterUtils.cxx b/PWG4/PartCorrBase/AliCalorimeterUtils.cxx
index 94585c7b82a7045153c557e41b25d8dde2e9aafe..43085fa82e51b5772b9f1c40e11fba9236b02c03 100755 (executable)
--- a/PWG4/PartCorrBase/AliCalorimeterUtils.cxx
+++ b/PWG4/PartCorrBase/AliCalorimeterUtils.cxx
@@ -314,6 +314,10 @@ Int_t AliCalorimeterUtils::GetModuleNumber(AliVCluster * cluster) const
        //Get the EMCAL/PHOS module number that corresponds to this cluster
        TLorentzVector lv;
        Double_t v[]={0.,0.,0.}; //not necessary to pass the real vertex.
+  if(!cluster){
+    if(fDebug > 1) printf("AliCalorimeterUtils::GetModuleNumber() - NUL Cluster, please check!!!");
+    return -1;
+  }
        cluster->GetMomentum(lv,v);
        Float_t phi = lv.Phi();
        if(phi < 0) phi+=TMath::TwoPi();