Added a NULL pointer check within DCE_AddClipRects function.

fbd0d25c · Noomen Hamza · Alexandre Julliard · 3332bd06 · fbd0d25c
Commit fbd0d25c authored Jun 15, 2000 by Noomen Hamza Committed by Alexandre Julliard Jun 15, 2000
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dce.c windows/dce.c +1 -1

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--- a/windows/dce.c
+++ b/windows/dce.c
@@ -443,7 +443,7 @@ static BOOL DCE_AddClipRects( WND *pWndStart, WND *pWndEnd,
    if( pWndStart->pDriver->pIsSelfClipping( pWndStart ) )
        return TRUE; /* The driver itself will do the clipping */

-    for (WIN_LockWndPtr(pWndStart); pWndStart != pWndEnd; WIN_UpdateWndPtr(&pWndStart,pWndStart->next))
+    for (WIN_LockWndPtr(pWndStart); (pWndStart && (pWndStart != pWndEnd)); WIN_UpdateWndPtr(&pWndStart,pWndStart->next))
    {
        if( !(pWndStart->dwStyle & WS_VISIBLE) ) continue;