Bluetooth: 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. As already done in hci_qca, add
struct hci_uart pointer to priv structure.

Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>

drivers/bluetooth/bluecard_cs.c

@@ -156,9 +156,9 @@ static void bluecard_detach(struct pcmcia_device *p_dev);
 /* ======================== LED handling routines ======================== */
 
 
-static void bluecard_activity_led_timeout(u_long arg)
+static void bluecard_activity_led_timeout(struct timer_list *t)
 {
-	struct bluecard_info *info = (struct bluecard_info *)arg;
+	struct bluecard_info *info = from_timer(info, t, timer);
 	unsigned int iobase = info->p_dev->resource[0]->start;
 
 	if (test_bit(CARD_ACTIVITY, &(info->hw_state))) {
@@ -691,8 +691,7 @@ static int bluecard_open(struct bluecard_info *info)
 
 	spin_lock_init(&(info->lock));
 
-	setup_timer(&(info->timer), &bluecard_activity_led_timeout,
-		    (u_long)info);
+	timer_setup(&info->timer, bluecard_activity_led_timeout, 0);
 
 	skb_queue_head_init(&(info->txq));