[PATCH] xtime value may become incorrect

[PATCH] xtime value may become incorrect

The xtime value may become incorrect when the update_wall_time(ticks)
function is called with "ticks" > 1.  In such a case, the xtime variable is
updated multiple times inside the loop but it is normalized only once
outside of the loop.

This bug was reported at:

http://bugme.osdl.org/show_bug.cgi?id=3403

Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>