[PATCH] Char: timers cleanup

- Use timer macros to set function and data members and to modify
  expiration time.
- Use DEFINE_TIMER for global timers and do not init them at run-time in
  these cases.
- del_timer_sync is common in most cases -- we want to wait for timer
  function if it's still running.

Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Cc: Dave Airlie <airlied@linux.ie>
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: Dominik Brodowski <linux@dominikbrodowski.net>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Cc: Paul Fulghum <paulkf@microgate.com>
Cc: Kylene Jo Hall <kjhall@us.ibm.com>
Cc: Wim Van Sebroeck <wim@iguana.be>
Acked-by: Dmitry Torokhov <dtor@mail.ru>	(Input bits)
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

drivers/char/tpm/tpm.c

@@ -1107,9 +1107,8 @@ struct tpm_chip *tpm_register_hardware(struct device *dev, const struct tpm_vend
 
 	INIT_WORK(&chip->work, timeout_work);
 
-	init_timer(&chip->user_read_timer);
-	chip->user_read_timer.function = user_reader_timeout;
-	chip->user_read_timer.data = (unsigned long) chip;
+	setup_timer(&chip->user_read_timer, user_reader_timeout,
+			(unsigned long)chip);
 
 	memcpy(&chip->vendor, entry, sizeof(struct tpm_vendor_specific));