From 0258667a6e0cd48a3e7dbce90e2a816f6ef5c37a Mon Sep 17 00:00:00 2001
From: Slawomir Milczarek <slawomir.milczarek@intel.com>
Date: Thu, 29 Aug 2024 07:52:13 +0000
Subject: [PATCH] fix: Set control block in buffer object handle wrapper to
 null after deletion

Related-To: HSD-18039543925

Signed-off-by: Slawomir Milczarek <slawomir.milczarek@intel.com>
---
 shared/source/os_interface/linux/drm_buffer_object.cpp | 1 +
 shared/source/os_interface/linux/drm_buffer_object.h   | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/shared/source/os_interface/linux/drm_buffer_object.cpp b/shared/source/os_interface/linux/drm_buffer_object.cpp
index ea5f7eb768..991636d66c 100644
--- a/shared/source/os_interface/linux/drm_buffer_object.cpp
+++ b/shared/source/os_interface/linux/drm_buffer_object.cpp
@@ -65,6 +65,7 @@ BufferObjectHandleWrapper::~BufferObjectHandleWrapper() {
     if (controlBlock->refCount == 0 && controlBlock->weakRefCount == 0) {
         lock.unlock();
         delete controlBlock;
+        controlBlock = nullptr;
     }
 }
 
diff --git a/shared/source/os_interface/linux/drm_buffer_object.h b/shared/source/os_interface/linux/drm_buffer_object.h
index 979ba252af..db1d045e57 100644
--- a/shared/source/os_interface/linux/drm_buffer_object.h
+++ b/shared/source/os_interface/linux/drm_buffer_object.h
@@ -76,7 +76,7 @@ class BufferObjectHandleWrapper {
 
     int boHandle{};
     Ownership ownership{Ownership::strong};
-    ControlBlock *controlBlock{};
+    ControlBlock *controlBlock{nullptr};
 };
 
 class BufferObject {