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EngCreateBitmap may return null. Add return value checks

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svn path=/trunk/; revision=21589
This commit is contained in:
Saveliy Tretiakov 2006-04-14 16:31:06 +00:00
parent 477fabfce2
commit a9161f0913
2 changed files with 13 additions and 0 deletions
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7
reactos/subsystems/win32/win32k/eng/engmisc.c
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@ -68,6 +68,13 @@ IntEngEnter(PINTENG_ENTER_LEAVE EnterLeave,
EnterLeave->OutputBitmap = EngCreateBitmap(BitmapSize, Width, EnterLeave->OutputBitmap = EngCreateBitmap(BitmapSize, Width,
DestObj->iBitmapFormat, DestObj->iBitmapFormat,
BMF_TOPDOWN | BMF_NOZEROINIT, NULL); BMF_TOPDOWN | BMF_NOZEROINIT, NULL);
if (!EnterLeave->OutputBitmap)
{
DPRINT1("EngCreateBitmap() failed\n");
return FALSE;
}
*OutputObj = EngLockSurface((HSURF)EnterLeave->OutputBitmap); *OutputObj = EngLockSurface((HSURF)EnterLeave->OutputBitmap);
EnterLeave->DestRect.left = 0; EnterLeave->DestRect.left = 0;

6
reactos/subsystems/win32/win32k/eng/surface.c
View file

@ -122,6 +122,12 @@ EngCreateDeviceBitmap(IN DHSURF dhsurf,
SURFOBJ *SurfObj; SURFOBJ *SurfObj;
NewBitmap = EngCreateBitmap(Size, DIB_GetDIBWidthBytes(Size.cx, BitsPerFormat(Format)), Format, 0, NULL); NewBitmap = EngCreateBitmap(Size, DIB_GetDIBWidthBytes(Size.cx, BitsPerFormat(Format)), Format, 0, NULL);
if(!NewBitmap)
{
DPRINT1("EngCreateBitmap failed\n");
return 0;
}
SurfObj = EngLockSurface((HSURF)NewBitmap); SurfObj = EngLockSurface((HSURF)NewBitmap);
SurfObj->dhsurf = dhsurf; SurfObj->dhsurf = dhsurf;
EngUnlockSurface(SurfObj); EngUnlockSurface(SurfObj);