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hw/xwin: Fix possible null ptr deref in winMWExtWMDecorateWindow() 

Signed-off-by: Ryan Pavlik <rpavlik@iastate.edu>
Reviewed-by: Colin Harrison <colin.harrison@virgin.net>
Reviewed-by: Jon TURNEY <jon.turney@dronecode.org.uk>
This commit is contained in:
Ryan Pavlik 2011-10-28 09:56:19 -05:00 committed by Jon TURNEY
parent c824004b45
commit 3d80f202b0
1 changed files with 2 additions and 1 deletions
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3
hw/xwin/winwin32rootlesswindow.c
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@ -202,7 +202,8 @@ winMWExtWMDecorateWindow (HWND hwnd, LPARAM lParam)
/* Check if the Windows window property for our X window pointer is valid */
if ((pRLWinPriv = (win32RootlessWindowPtr)GetProp (hwnd, WIN_WINDOW_PROP)) != NULL)
{
pScreen = pRLWinPriv->pFrame->win->drawable.pScreen;
if (pRLWinPriv != NULL && pRLWinPriv->pFrame != NULL && pRLWinPriv->pFrame->win != NULL)
pScreen = pRLWinPriv->pFrame->win->drawable.pScreen;
if (pScreen) pScreenPriv = winGetScreenPriv(pScreen);
if (pScreenPriv) pScreenInfo = pScreenPriv->pScreenInfo;
if (pRLWinPriv && pScreenInfo) winMWExtWMUpdateWindowDecoration (pRLWinPriv, pScreenInfo);