2607 	struct pmu_private *pp;  in pmu_pass_intr()  local
2612 	if (len > sizeof(pp->rb_buf[0].data))  in pmu_pass_intr()
2613 		len = sizeof(pp->rb_buf[0].data);  in pmu_pass_intr()
2616 		pp = list_entry(list, struct pmu_private, list);  in pmu_pass_intr()
2617 		spin_lock(&pp->lock);  in pmu_pass_intr()
2618 		i = pp->rb_put + 1;  in pmu_pass_intr()
2621 		if (i != pp->rb_get) {  in pmu_pass_intr()
2622 			struct rb_entry *rp = &pp->rb_buf[pp->rb_put];  in pmu_pass_intr()
2625 			pp->rb_put = i;  in pmu_pass_intr()
2626 			wake_up_interruptible(&pp->wait);  in pmu_pass_intr()
2628 		spin_unlock(&pp->lock);  in pmu_pass_intr()
2635 	struct pmu_private *pp;  in pmu_open()  local
2638 	pp = kmalloc(sizeof(struct pmu_private), GFP_KERNEL);  in pmu_open()
2639 	if (pp == 0)  in pmu_open()
2641 	pp->rb_get = pp->rb_put = 0;  in pmu_open()
2642 	spin_lock_init(&pp->lock);  in pmu_open()
2643 	init_waitqueue_head(&pp->wait);  in pmu_open()
2646 	pp->backlight_locker = 0;  in pmu_open()
2648 	list_add(&pp->list, &all_pmu_pvt);  in pmu_open()
2650 	file->private_data = pp;  in pmu_open()
2658 	struct pmu_private *pp = file->private_data;  in pmu_read()  local
2663 	if (count < 1 || pp == 0)  in pmu_read()
2669 	spin_lock_irqsave(&pp->lock, flags);  in pmu_read()
2670 	add_wait_queue(&pp->wait, &wait);  in pmu_read()
2675 		if (pp->rb_get != pp->rb_put) {  in pmu_read()
2676 			int i = pp->rb_get;  in pmu_read()
2677 			struct rb_entry *rp = &pp->rb_buf[i];  in pmu_read()
2679 			spin_unlock_irqrestore(&pp->lock, flags);  in pmu_read()
2686 			spin_lock_irqsave(&pp->lock, flags);  in pmu_read()
2687 			pp->rb_get = i;  in pmu_read()
2696 		spin_unlock_irqrestore(&pp->lock, flags);  in pmu_read()
2698 		spin_lock_irqsave(&pp->lock, flags);  in pmu_read()
2701 	remove_wait_queue(&pp->wait, &wait);  in pmu_read()
2702 	spin_unlock_irqrestore(&pp->lock, flags);  in pmu_read()
2715 	struct pmu_private *pp = filp->private_data;  in pmu_fpoll()  local
2719 	if (pp == 0)  in pmu_fpoll()
2721 	poll_wait(filp, &pp->wait, wait);  in pmu_fpoll()
2722 	spin_lock_irqsave(&pp->lock, flags);  in pmu_fpoll()
2723 	if (pp->rb_get != pp->rb_put)  in pmu_fpoll()
2725 	spin_unlock_irqrestore(&pp->lock, flags);  in pmu_fpoll()
2731 	struct pmu_private *pp = file->private_data;  in pmu_release()  local
2735 	if (pp != 0) {  in pmu_release()
2738 		list_del(&pp->list);  in pmu_release()
2741 		if (pp->backlight_locker) {  in pmu_release()
2747 		kfree(pp);  in pmu_release()
2757 	struct pmu_private *pp = filp->private_data;  in pmu_ioctl()  local
2810 		if (pp->backlight_locker)  in pmu_ioctl()
2812 		pp->backlight_locker = 1;  in pmu_ioctl()