andreacavalli/xserver-multidpi
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mi: guard against NULL-pointer dereference.

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This commit is contained in:
Peter Hutterer 2008-04-28 11:37:21 +09:30
parent b5004722a2
commit 1fab51edfc
1 changed files with 4 additions and 1 deletions
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5
mi/misprite.c
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@ -916,12 +916,15 @@ miSpriteUndisplayCursor(pDev, pScreen)
DeviceIntPtr pDev;
ScreenPtr pScreen;
{
miCursorInfoPtr pCursorInfo;
if (!pDev->isMaster && !pDev->u.master)
{
ErrorF("[mi] miSpriteUndisplayCursor called for floating device.\n");
return;
}
if (MISPRITE(pDev)->isUp)
pCursorInfo = MISPRITE(pDev);
if (pCursorInfo && pCursorInfo->isUp)
miSpriteRemoveCursor(pDev, pScreen);
}