From 4c69001a0acef9a77c5963708ecc67262c2b26bd Mon Sep 17 00:00:00 2001
From: BoB13-Matter <bob13wtm@gmail.com>
Date: Tue, 3 Dec 2024 00:26:18 +0900
Subject: [PATCH] Ensure SYSTEM_STATS_INCREMENT only on successful Timer
 allocation in SystemTimer.h (#36690)

* Fix: Ensure SYSTEM_STATS_INCREMENT only on successful Timer allocation

* Update SystemTimer.h
---
 src/system/SystemTimer.h | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/system/SystemTimer.h b/src/system/SystemTimer.h
index 698be028ce029a..99c3d8620f194f 100644
--- a/src/system/SystemTimer.h
+++ b/src/system/SystemTimer.h
@@ -204,7 +204,11 @@ class TimerPool
     Timer * Create(Layer & systemLayer, System::Clock::Timestamp awakenTime, TimerCompleteCallback onComplete, void * appState)
     {
         Timer * timer = mTimerPool.CreateObject(systemLayer, awakenTime, onComplete, appState);
-        SYSTEM_STATS_INCREMENT(Stats::kSystemLayer_NumTimers);
+        if (timer != nullptr)
+        {
+            SYSTEM_STATS_INCREMENT(Stats::kSystemLayer_NumTimers);
+        }
+
         return timer;
     }