My latest 8250 patch prevented registration of "empty" ports (ports that
have a 0 iobase in the static table). Unfortunately, some archs seem to rely
on this, and so broke. This patch reverts that part of the patch.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>