From cd2c8822a139e83265ff49e23bb3f783255fa15f Mon Sep 17 00:00:00 2001
From: David <David.Lange@cern.ch>
Date: Sun, 15 Nov 2015 10:09:20 +0100
Subject: [PATCH] implement fix from Chris for mayconsumes race condition

---
 L1Trigger/DTTrackFinder/src/L1MuDTSectorReceiver.cc | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/L1Trigger/DTTrackFinder/src/L1MuDTSectorReceiver.cc b/L1Trigger/DTTrackFinder/src/L1MuDTSectorReceiver.cc
index 52f042ec8f4ba..103cda342bbb7 100644
--- a/L1Trigger/DTTrackFinder/src/L1MuDTSectorReceiver.cc
+++ b/L1Trigger/DTTrackFinder/src/L1MuDTSectorReceiver.cc
@@ -54,8 +54,10 @@ using namespace std;
 //----------------
 L1MuDTSectorReceiver::L1MuDTSectorReceiver(L1MuDTSectorProcessor& sp, edm::ConsumesCollector && iC) : 
         m_sp(sp),
-        m_DTDigiToken(iC.consumes<L1MuDTChambPhContainer>(L1MuDTTFConfig::getDTDigiInputTag())),
-        m_CSCTrSToken(iC.mayConsume<CSCTriggerContainer<csctf::TrackStub> >(L1MuDTTFConfig::getCSCTrSInputTag())) {
+        m_DTDigiToken(iC.consumes<L1MuDTChambPhContainer>(L1MuDTTFConfig::getDTDigiInputTag()))
+{
+	if (L1MuDTTFConfig::getCSCTrSInputTag().label() != "none" ) 
+	  m_CSCTrSToken=iC.consumes<CSCTriggerContainer<csctf::TrackStub> >(L1MuDTTFConfig::getCSCTrSInputTag()); 
 }