From 02fd85a6ebe132a39f52d7d86a119fc9ef4698ab Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Rub=C3=A9n=20Norte?= <rubennorte@meta.com>
Date: Mon, 14 Oct 2024 02:35:30 -0700
Subject: [PATCH] Fix race condition when reporting mounting transactions for
 deallocated surfaces (#47008)

Summary:

Changelog: [internal]

This code is gated anyway so there's no harm in production.

Reviewed By: javache

Differential Revision: D64322331
---
 .../src/main/jni/react/fabric/FabricUIManagerBinding.cpp     | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/packages/react-native/ReactAndroid/src/main/jni/react/fabric/FabricUIManagerBinding.cpp b/packages/react-native/ReactAndroid/src/main/jni/react/fabric/FabricUIManagerBinding.cpp
index 2e2e50f315c3ad..76384785d33d2e 100644
--- a/packages/react-native/ReactAndroid/src/main/jni/react/fabric/FabricUIManagerBinding.cpp
+++ b/packages/react-native/ReactAndroid/src/main/jni/react/fabric/FabricUIManagerBinding.cpp
@@ -121,7 +121,10 @@ void FabricUIManagerBinding::reportMount(SurfaceId surfaceId) {
         }
       }
       if (surfaceHandler != nullptr) {
-        surfaceHandler->getMountingCoordinator()->didPerformAsyncTransactions();
+        auto mountingCoordinator = surfaceHandler->getMountingCoordinator();
+        if (mountingCoordinator != nullptr) {
+          mountingCoordinator->didPerformAsyncTransactions();
+        }
       }
     } else {
       LOG(ERROR) << "FabricUIManagerBinding::reportMount: Surface with id "