protection against wrong esd track labels

diff --git a/PWG0/dNdPt/AlidNdPtAnalysis.cxx b/PWG0/dNdPt/AlidNdPtAnalysis.cxx
index 99f198b50ba6edfc4fdd2048dbdeb561db8ef608..b8ed4a88815e98843a35e071c457370faf153e54 100644 (file)
--- a/PWG0/dNdPt/AlidNdPtAnalysis.cxx
+++ b/PWG0/dNdPt/AlidNdPtAnalysis.cxx
@@ -1749,7 +1749,11 @@ void AlidNdPtAnalysis::FillHistograms(AliESDtrack *const esdTrack, AliStack *con
   if(!stack) return;\r
 \r
   Int_t label = TMath::Abs(esdTrack->GetLabel()); \r
-  //if(label == 0) return;\r
+  if(label > stack->GetNtrack()) \r
+  {\r
+    printf("esd track label: %d, stack->GetNtrack(): %d\n", label, stack->GetNtrack());\r
+    return;\r
+  }\r
 \r
   TParticle* particle = stack->Particle(label);\r
   if(!particle) return;\r