Use kernel macros and functions for timer encapsulation -- do not access
fileds directly.  Also del_timer on inactive is legal, so that noting if it
runs is senseless, delete these variables.
Signed-off-by: NJiri Slaby <jirislaby@gmail.com>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>