From 5ef35a4ccfc2d39dd62ca5901b435f4bcf149e7b Mon Sep 17 00:00:00 2001
From: Nadia Holmquist Pedersen <nadia@nhp.sh>
Date: Fri, 8 Dec 2023 17:39:56 +0100
Subject: Don't try to poke at the header on deinit if MPQueue is nullptr

---
 src/frontend/qt_sdl/LocalMP.cpp | 11 +++++++----
 1 file changed, 7 insertions(+), 4 deletions(-)

diff --git a/src/frontend/qt_sdl/LocalMP.cpp b/src/frontend/qt_sdl/LocalMP.cpp
index a0dfdf7..c69537a 100644
--- a/src/frontend/qt_sdl/LocalMP.cpp
+++ b/src/frontend/qt_sdl/LocalMP.cpp
@@ -303,10 +303,13 @@ void DeInit()
     if (MPQueue)
     {
         MPQueue->lock();
-        MPQueueHeader* header = (MPQueueHeader*)MPQueue->data();
-        header->ConnectedBitmask &= ~(1 << InstanceID);
-        header->InstanceBitmask &= ~(1 << InstanceID);
-        header->NumInstances--;
+        if (MPQueue->data() != nullptr)
+        {
+            MPQueueHeader *header = (MPQueueHeader *) MPQueue->data();
+            header->ConnectedBitmask &= ~(1 << InstanceID);
+            header->InstanceBitmask &= ~(1 << InstanceID);
+            header->NumInstances--;
+        }
         MPQueue->unlock();
 
         SemPoolDeinit();
-- 
cgit v1.2.3