[tbb-commits] [tor-browser] 14/76: Bug 1758070 - Null out mContext during shutdown. r=emilio, a=tritter

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richard pushed a commit to branch tor-browser-91.8.0esr-11.0-1
in repository tor-browser.

commit 8842d832e7e2f3847365714c578b1a8fade9b949
Author: Nicolas Silva <nsilva at mozilla.com>
AuthorDate: Fri Mar 4 16:12:04 2022 +0000

    Bug 1758070 - Null out mContext during shutdown. r=emilio, a=tritter
    
    Differential Revision: https://phabricator.services.mozilla.com/D140336
---
 dom/webgpu/ipc/WebGPUParent.cpp | 1 +
 dom/webgpu/ipc/WebGPUParent.h   | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/dom/webgpu/ipc/WebGPUParent.cpp b/dom/webgpu/ipc/WebGPUParent.cpp
index 05889fe4ac786..95de5edbf8316 100644
--- a/dom/webgpu/ipc/WebGPUParent.cpp
+++ b/dom/webgpu/ipc/WebGPUParent.cpp
@@ -736,6 +736,7 @@ ipc::IPCResult WebGPUParent::RecvShutdown() {
   mCanvasMap.clear();
   ffi::wgpu_server_poll_all_devices(mContext, true);
   ffi::wgpu_server_delete(const_cast<ffi::WGPUGlobal*>(mContext));
+  mContext = nullptr;
   return IPC_OK();
 }
 
diff --git a/dom/webgpu/ipc/WebGPUParent.h b/dom/webgpu/ipc/WebGPUParent.h
index ec69a8588717e..e43e6e22d321d 100644
--- a/dom/webgpu/ipc/WebGPUParent.h
+++ b/dom/webgpu/ipc/WebGPUParent.h
@@ -94,7 +94,7 @@ class WebGPUParent final : public PWebGPUParent {
   void MaintainDevices();
   bool ForwardError(RawId aDeviceID, ErrorBuffer& aError);
 
-  const ffi::WGPUGlobal* const mContext;
+  const ffi::WGPUGlobal* mContext;
   base::RepeatingTimer<WebGPUParent> mTimer;
   /// Shmem associated with a mappable buffer has to be owned by one of the
   /// processes. We keep it here for every mappable buffer while the buffer is

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