[Xorg-driver-geode] Explain: [PATCH] Rectify lx_display.c outstanding compiler warnings

[Cui, Hunk]

Hi, all

	About lx_display.c outstanding compiler warnings, have commit to
mailing list
(http://lists.x.org/archives/xorg-driver-geode/2010-August/000970.html).
Please check out.
	Now the LXAllocShadow is returning function. It should return
something useful.  
	Let the LXAllocShadow check for the TRUE or FALSE in
lx_crtc_shadow_allocate function.

Thanks,
Hunk Cui