USB: serial: garmin_gps: convert timers to use timer_setup()

In preparation for unconditionally passing the struct timer_list pointer to
all timer callbacks, switch to using the new timer_setup() and from_timer()
to pass the timer pointer explicitly.

Cc: Johan Hovold <johan@kernel.org>
Cc: Allen Pais <allen.lkml@gmail.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: linux-usb@vger.kernel.org
Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Johan Hovold <johan@kernel.org>

diff --git a/drivers/usb/serial/garmin_gps.c b/drivers/usb/serial/garmin_gps.c
index b2f2e87..1f439b6 100644 (file)
--- a/drivers/usb/serial/garmin_gps.c
+++ b/drivers/usb/serial/garmin_gps.c
@@ -1370,9 +1370,9 @@ static void garmin_unthrottle(struct tty_struct *tty)
  * the tty in cases where the protocol provides no own handshaking
  * to initiate the transfer.
  */
-static void timeout_handler(unsigned long data)
+static void timeout_handler(struct timer_list *t)
 {
-       struct garmin_data *garmin_data_p = (struct garmin_data *) data;
+       struct garmin_data *garmin_data_p = from_timer(garmin_data_p, t, timer);
 
        /* send the next queued packet to the tty port */
        if (garmin_data_p->mode == MODE_NATIVE)
@@ -1391,12 +1391,10 @@ static int garmin_port_probe(struct usb_serial_port *port)
        if (!garmin_data_p)
                return -ENOMEM;
 
-       init_timer(&garmin_data_p->timer);
+       timer_setup(&garmin_data_p->timer, timeout_handler, 0);
        spin_lock_init(&garmin_data_p->lock);
        INIT_LIST_HEAD(&garmin_data_p->pktlist);
        /* garmin_data_p->timer.expires = jiffies + session_timeout; */
-       garmin_data_p->timer.data = (unsigned long)garmin_data_p;
-       garmin_data_p->timer.function = timeout_handler;
        garmin_data_p->port = port;
        garmin_data_p->state = 0;
        garmin_data_p->flags = 0;