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mi: check for NULL pointer before dereferences it in miPointerSetPosition 

Signed-off-by: Tiago Vignatti <tiago.vignatti@nokia.com>
Reviewed-by: Dan Nicholson <dbn.lists@gmail.com>
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
This commit is contained in:
Tiago Vignatti 2010-04-16 18:35:55 +03:00
parent 49835eec0c
commit 099946a3ac
1 changed files with 3 additions and 3 deletions
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6
mi/mipointer.c
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@ -497,14 +497,14 @@ miPointerSetPosition(DeviceIntPtr pDev, int *x, int *y)
miPointerPtr pPointer; miPointerPtr pPointer;
if (!pDev || !pDev->coreEvents)
return;
pPointer = MIPOINTER(pDev); pPointer = MIPOINTER(pDev);
pScreen = pPointer->pScreen; pScreen = pPointer->pScreen;
if (!pScreen) if (!pScreen)
return; /* called before ready */ return; /* called before ready */
if (!pDev || !pDev->coreEvents)
return;
if (*x < 0 || *x >= pScreen->width || *y < 0 || *y >= pScreen->height) if (*x < 0 || *x >= pScreen->width || *y < 0 || *y >= pScreen->height)
{ {
pScreenPriv = GetScreenPrivate (pScreen); pScreenPriv = GetScreenPrivate (pScreen);