ALSA: usb-audio: 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.
Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
diff --git a/sound/usb/midi.c b/sound/usb/midi.c
index 7ab25de..2c1aaa3 100644
--- a/sound/usb/midi.c
+++ b/sound/usb/midi.c
@@ -352,9 +352,9 @@ static void snd_usbmidi_out_tasklet(unsigned long data)
}
/* called after transfers had been interrupted due to some USB error */
-static void snd_usbmidi_error_timer(unsigned long data)
+static void snd_usbmidi_error_timer(struct timer_list *t)
{
- struct snd_usb_midi *umidi = (struct snd_usb_midi *)data;
+ struct snd_usb_midi *umidi = from_timer(umidi, t, error_timer);
unsigned int i, j;
spin_lock(&umidi->disc_lock);
@@ -2369,8 +2369,7 @@ int __snd_usbmidi_create(struct snd_card *card,
usb_id = USB_ID(le16_to_cpu(umidi->dev->descriptor.idVendor),
le16_to_cpu(umidi->dev->descriptor.idProduct));
umidi->usb_id = usb_id;
- setup_timer(&umidi->error_timer, snd_usbmidi_error_timer,
- (unsigned long)umidi);
+ timer_setup(&umidi->error_timer, snd_usbmidi_error_timer, 0);
/* detect the endpoint(s) to use */
memset(endpoints, 0, sizeof(endpoints));