From 10135092018488f815cf776a5486621f9a734cec Mon Sep 17 00:00:00 2001
From: Vivien Nicolas <vnicolas@apple.com>
Date: Wed, 16 Feb 2022 15:45:16 +0100
Subject: [PATCH] Prevent ExchangeMgr::Shutdown to be called twice (#15169)

---
 src/messaging/ExchangeMgr.cpp | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/messaging/ExchangeMgr.cpp b/src/messaging/ExchangeMgr.cpp
index a6cfb9d1947c2e..9bad95305e21cf 100644
--- a/src/messaging/ExchangeMgr.cpp
+++ b/src/messaging/ExchangeMgr.cpp
@@ -94,6 +94,8 @@ CHIP_ERROR ExchangeManager::Init(SessionManager * sessionManager)
 
 CHIP_ERROR ExchangeManager::Shutdown()
 {
+    VerifyOrReturnError(mState == State::kState_Initialized, CHIP_ERROR_INCORRECT_STATE);
+
     mReliableMessageMgr.Shutdown();
 
     if (mSessionManager != nullptr)