fix undefined behavior in MultiTrackValidator

cms-sw · Aug 31, 2021 · ec0f51a · ec0f51a
1 parent 405b802
commit ec0f51a
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/Validation/RecoTrack/plugins/MultiTrackValidator.cc b/Validation/RecoTrack/plugins/MultiTrackValidator.cc
@@ -532,6 +532,9 @@ void MultiTrackValidator::trackDR(const edm::View<reco::Track>& trackCollection,
                                   DynArray<float>& dR_trk,
                                   DynArray<float>& dR_trk_jet,
                                   const edm::View<reco::Candidate>* cores) const {
+  if (trackCollectionDr.empty()) {
+    return;
+  }
   int i = 0;
   float etaL[trackCollectionDr.size()];
   float phiL[trackCollectionDr.size()];