2049 	struct pmu_private *pp;  in pmu_pass_intr()  local
2054 	if (len > sizeof(pp->rb_buf[0].data))  in pmu_pass_intr()
2055 		len = sizeof(pp->rb_buf[0].data);  in pmu_pass_intr()
2058 		pp = list_entry(list, struct pmu_private, list);  in pmu_pass_intr()
2059 		spin_lock(&pp->lock);  in pmu_pass_intr()
2060 		i = pp->rb_put + 1;  in pmu_pass_intr()
2063 		if (i != pp->rb_get) {  in pmu_pass_intr()
2064 			struct rb_entry *rp = &pp->rb_buf[pp->rb_put];  in pmu_pass_intr()
2067 			pp->rb_put = i;  in pmu_pass_intr()
2068 			wake_up_interruptible(&pp->wait);  in pmu_pass_intr()
2070 		spin_unlock(&pp->lock);  in pmu_pass_intr()
2078 	struct pmu_private *pp;  in pmu_open()  local
2081 	pp = kmalloc(sizeof(struct pmu_private), GFP_KERNEL);  in pmu_open()
2082 	if (pp == 0)  in pmu_open()
2084 	pp->rb_get = pp->rb_put = 0;  in pmu_open()
2085 	spin_lock_init(&pp->lock);  in pmu_open()
2086 	init_waitqueue_head(&pp->wait);  in pmu_open()
2090 	pp->backlight_locker = 0;  in pmu_open()
2092 	list_add(&pp->list, &all_pmu_pvt);  in pmu_open()
2094 	file->private_data = pp;  in pmu_open()
2103 	struct pmu_private *pp = file->private_data;  in pmu_read()  local
2108 	if (count < 1 || pp == 0)  in pmu_read()
2113 	spin_lock_irqsave(&pp->lock, flags);  in pmu_read()
2114 	add_wait_queue(&pp->wait, &wait);  in pmu_read()
2119 		if (pp->rb_get != pp->rb_put) {  in pmu_read()
2120 			int i = pp->rb_get;  in pmu_read()
2121 			struct rb_entry *rp = &pp->rb_buf[i];  in pmu_read()
2123 			spin_unlock_irqrestore(&pp->lock, flags);  in pmu_read()
2130 			spin_lock_irqsave(&pp->lock, flags);  in pmu_read()
2131 			pp->rb_get = i;  in pmu_read()
2140 		spin_unlock_irqrestore(&pp->lock, flags);  in pmu_read()
2142 		spin_lock_irqsave(&pp->lock, flags);  in pmu_read()
2145 	remove_wait_queue(&pp->wait, &wait);  in pmu_read()
2146 	spin_unlock_irqrestore(&pp->lock, flags);  in pmu_read()
2161 	struct pmu_private *pp = filp->private_data;  in pmu_fpoll()  local
2165 	if (pp == 0)  in pmu_fpoll()
2167 	poll_wait(filp, &pp->wait, wait);  in pmu_fpoll()
2168 	spin_lock_irqsave(&pp->lock, flags);  in pmu_fpoll()
2169 	if (pp->rb_get != pp->rb_put)  in pmu_fpoll()
2171 	spin_unlock_irqrestore(&pp->lock, flags);  in pmu_fpoll()
2178 	struct pmu_private *pp = file->private_data;  in pmu_release()  local
2181 	if (pp != 0) {  in pmu_release()
2184 		list_del(&pp->list);  in pmu_release()
2188 		if (pp->backlight_locker)  in pmu_release()
2192 		kfree(pp);  in pmu_release()
2326 		struct pmu_private *pp = filp->private_data;  in pmu_ioctl()  local
2328 		if (pp->backlight_locker)  in pmu_ioctl()
2331 		pp->backlight_locker = 1;  in pmu_ioctl()