ALSA: ua101: convert tasklets to use new tasklet_setup() API

In preparation for unconditionally passing the
struct tasklet_struct pointer to all tasklet
callbacks, switch to using the new tasklet_setup()
and from_tasklet() to pass the tasklet pointer explicitly.

Signed-off-by: Romain Perier <romain.perier@gmail.com>
Signed-off-by: Allen Pais <allen.lkml@gmail.com>
Link: https://lore.kernel.org/r/20200902040221.354941-11-allen.lkml@gmail.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>

diff --git a/sound/usb/misc/ua101.c b/sound/usb/misc/ua101.c
index 884e740..3b2dce1 100644 (file)
--- a/sound/usb/misc/ua101.c
+++ b/sound/usb/misc/ua101.c
@@ -247,9 +247,9 @@ static inline void add_with_wraparound(struct ua101 *ua,
                *value -= ua->playback.queue_length;
 }
 
-static void playback_tasklet(unsigned long data)
+static void playback_tasklet(struct tasklet_struct *t)
 {
-       struct ua101 *ua = (void *)data;
+       struct ua101 *ua = from_tasklet(ua, t, playback_tasklet);
        unsigned long flags;
        unsigned int frames;
        struct ua101_urb *urb;
@@ -1218,8 +1218,7 @@ static int ua101_probe(struct usb_interface *interface,
        spin_lock_init(&ua->lock);
        mutex_init(&ua->mutex);
        INIT_LIST_HEAD(&ua->ready_playback_urbs);
-       tasklet_init(&ua->playback_tasklet,
-                    playback_tasklet, (unsigned long)ua);
+       tasklet_setup(&ua->playback_tasklet, playback_tasklet);
        init_waitqueue_head(&ua->alsa_capture_wait);
        init_waitqueue_head(&ua->rate_feedback_wait);
        init_waitqueue_head(&ua->alsa_playback_wait);