From 24b93fdb022832e41f5d0106945207ecfa300cd1 Mon Sep 17 00:00:00 2001
From: jlagram <jlagram@cern.ch>
Date: Mon, 5 Jun 2023 11:17:54 +0200
Subject: [PATCH] Fix a warning

---
 .../SiStripHitEfficiency/plugins/SiStripHitEffFromCalibTree.cc  | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/CalibTracker/SiStripHitEfficiency/plugins/SiStripHitEffFromCalibTree.cc b/CalibTracker/SiStripHitEfficiency/plugins/SiStripHitEffFromCalibTree.cc
index b3edbe0b6c249..e6df2a4f834b1 100644
--- a/CalibTracker/SiStripHitEfficiency/plugins/SiStripHitEffFromCalibTree.cc
+++ b/CalibTracker/SiStripHitEfficiency/plugins/SiStripHitEffFromCalibTree.cc
@@ -1035,7 +1035,7 @@ void SiStripHitEffFromCalibTree::makeHotColdMaps() {
 void SiStripHitEffFromCalibTree::makeTKMap(bool autoTagging = false) {
   LOGPRINT << "Entering TKMap generation!\n";
 
-  TTree* tree;
+  TTree* tree = nullptr;
   unsigned int t_DetId, t_found, t_total;
   unsigned char t_layer;
   bool t_isTaggedIneff;