[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>

1 files changed, 4 insertions, 8 deletions

diff --git a/drivers/char/rio/rio_linux.c b/drivers/char/rio/rio_linux.c
index e79b2ede8510..85c161845260 100644
--- a/drivers/char/rio/rio_linux.c
+++ b/drivers/char/rio/rio_linux.c
@@ -418,8 +418,7 @@ static void rio_pollfunc(unsigned long data)
         func_enter();
 
         rio_interrupt(0, &p->RIOHosts[data]);
-        p->RIOHosts[data].timer.expires = jiffies + rio_poll;
-        add_timer(&p->RIOHosts[data].timer);
+        mod_timer(&p->RIOHosts[data].timer, jiffies + rio_poll);
 
         func_exit();
 }
@@ -1154,13 +1153,10 @@ static int __init rio_init(void)
                 /* Init the timer "always" to make sure that it can safely be
                    deleted when we unload... */
 
-                init_timer(&hp->timer);
+                setup_timer(&hp->timer, rio_pollfunc, i);
                 if (!hp->Ivec) {
                         rio_dprintk(RIO_DEBUG_INIT, "Starting polling at %dj intervals.\n", rio_poll);
-                        hp->timer.data = i;
-                        hp->timer.function = rio_pollfunc;
-                        hp->timer.expires = jiffies + rio_poll;
-                        add_timer(&hp->timer);
+                        mod_timer(&hp->timer, jiffies + rio_poll);
                 }
         }
 
@@ -1191,7 +1187,7 @@ static void __exit rio_exit(void)
                         rio_dprintk(RIO_DEBUG_INIT, "freed irq %d.\n", hp->Ivec);
                 }
                 /* It is safe/allowed to del_timer a non-active timer */
-                del_timer(&hp->timer);
+                del_timer_sync(&hp->timer);
                 if (hp->Caddr)
                         iounmap(hp->Caddr);
                 if (hp->Type == RIO_PCI)