EDID_INFO is encroaching on the space meant for E820 map in zero-page.
This will result in E820 map corruption on any system that has more=20 than
18 E820 entries and CONFIG_VIDEO_SELECT.  Not sure how this bug=20 managed
to hide for more than a year.

Attached patch should fix the bug.
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>