arch/um/kernel/tlb.c had some pretty serious whitespace problems.  I also
fixed some returns.
Signed-off-by: NJeff Dike <jdike@addtoit.com>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>