ubifs: Switch to use hrtimer_setup()

hrtimer_setup() takes the callback function pointer as argument and
initializes the timer completely.

Replace hrtimer_init() and the open coded initialization of
hrtimer::function with the new setup mechanism.

Patch was created by using Coccinelle.

Signed-off-by: Nam Cao <[e-mail]>
Signed-off-by: Thomas Gleixner <[e-mail]>
Acked-by: Richard Weinberger <[e-mail]>
Link: https://lore.kernel.org/all/[e-mail]

fs/ubifs/io.c

···
 	wbuf->c = c;
 	wbuf->next_ino = 0;
 
-	hrtimer_init(&wbuf->timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
-	wbuf->timer.function = wbuf_timer_callback_nolock;
+	hrtimer_setup(&wbuf->timer, wbuf_timer_callback_nolock, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
 	return 0;
 }