From 2f7f3bf5d94b35c437ad970bb200c558c77d6508 Mon Sep 17 00:00:00 2001
From: kangping <wgtdkp@google.com>
Date: Tue, 27 Jul 2021 13:06:29 +0800
Subject: [PATCH] [backbone-router] fix deinit MulticastRoutingManager (#6854)

The OpenThread instance has already been deinitialized before the
platform MulticastRoutingManager is deinitialized. We can never
reference to mInstance in Deinit.
---
 src/posix/platform/multicast_routing.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/posix/platform/multicast_routing.cpp b/src/posix/platform/multicast_routing.cpp
index 4b4ed686c..f83dfa74d 100644
--- a/src/posix/platform/multicast_routing.cpp
+++ b/src/posix/platform/multicast_routing.cpp
@@ -63,7 +63,7 @@ void MulticastRoutingManager::Init(otInstance *aInstance)
 void MulticastRoutingManager::Deinit(void)
 {
     Mainloop::Manager::Get().Remove(*this);
-    otBackboneRouterSetMulticastListenerCallback(mInstance, nullptr, nullptr);
+    mInstance = nullptr;
 }
 
 void MulticastRoutingManager::HandleBackboneMulticastListenerEvent(void *                                 aContext,