Function pic_lookup

freebsd/kern/subr_intr.c:748–757

* Lookup interrupt controller. */

 *  Lookup interrupt controller.
 */
static struct intr_pic *
pic_lookup(device_t dev, intptr_t xref, int flags)
{
	struct intr_pic *pic;

	mtx_lock(&pic_list_lock);
	pic = pic_lookup_locked(dev, xref, flags);
	mtx_unlock(&pic_list_lock);
	return (pic);
}

/*
 *  Create interrupt controller.