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wined3d: Clear the device if we're not removing the entry from the table in wined3d_unregister_window(). 

The device may be destroyed after the window is unregistered, causing
device_process_message() to access freed memory.
This commit is contained in:
Henri Verbeet 2012-01-26 00:21:17 +01:00 committed by Alexandre Julliard
parent d3918683e6
commit faa040cd9e
1 changed files with 7 additions and 1 deletions
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6
dlls/wined3d/wined3d_main.c
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@ -444,7 +444,11 @@ static LRESULT CALLBACK wined3d_wndproc(HWND window, UINT message, WPARAM wparam
proc = entry->proc;
wined3d_wndproc_mutex_unlock();
if (device)
return device_process_message(device, window, unicode, message, wparam, lparam, proc);
if (unicode)
return CallWindowProcW(proc, window, message, wparam, lparam);
return CallWindowProcA(proc, window, message, wparam, lparam);
}
BOOL wined3d_register_window(HWND window, struct wined3d_device *device)
@ -515,6 +519,7 @@ void wined3d_unregister_window(HWND window)
proc = GetWindowLongPtrW(window, GWLP_WNDPROC);
if (proc != (LONG_PTR)wined3d_wndproc)
{
entry->device = NULL;
wined3d_wndproc_mutex_unlock();
WARN("Not unregistering window %p, window proc %#lx doesn't match wined3d window proc %p.\n",
window, proc, wined3d_wndproc);
@ -528,6 +533,7 @@ void wined3d_unregister_window(HWND window)
proc = GetWindowLongPtrA(window, GWLP_WNDPROC);
if (proc != (LONG_PTR)wined3d_wndproc)
{
entry->device = NULL;
wined3d_wndproc_mutex_unlock();
WARN("Not unregistering window %p, window proc %#lx doesn't match wined3d window proc %p.\n",
window, proc, wined3d_wndproc);