hw/xwin: Fix possible null ptr deref in winMWExtWMRestackFrame()
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>
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@ -551,7 +551,7 @@ winMWExtWMRestackFrame (RootlessFrameID wid, RootlessFrameID nextWid)
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winDebug ("winMWExtWMRestackFrame (%08x)\n", (int) pRLWinPriv);
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#endif
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if (pScreenPriv->fRestacking) return;
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if (pScreenPriv && pScreenPriv->fRestacking) return;
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if (pScreenPriv) pScreenInfo = pScreenPriv->pScreenInfo;
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