198 	struct apm_user *as;  in queue_event()  local
201 	list_for_each_entry(as, &apm_user_list, list) {  in queue_event()
202 		if (as->reader)  in queue_event()
203 			queue_add_event(&as->queue, event);  in queue_event()
211 	struct apm_user *as = fp->private_data;  in apm_read()  local
218 	if (queue_empty(&as->queue) && fp->f_flags & O_NONBLOCK)  in apm_read()
221 	wait_event_interruptible(apm_waitqueue, !queue_empty(&as->queue));  in apm_read()
223 	while ((i >= sizeof(event)) && !queue_empty(&as->queue)) {  in apm_read()
224 		event = queue_get_event(&as->queue);  in apm_read()
231 		if (as->suspend_state == SUSPEND_PENDING &&  in apm_read()
233 			as->suspend_state = SUSPEND_READ;  in apm_read()
248 	struct apm_user *as = fp->private_data;  in apm_poll()  local
251 	return queue_empty(&as->queue) ? 0 : POLLIN | POLLRDNORM;  in apm_poll()
267 	struct apm_user *as = filp->private_data;  in apm_ioctl()  local
270 	if (!as->suser || !as->writer)  in apm_ioctl()
277 		as->suspend_result = -EINTR;  in apm_ioctl()
279 		switch (as->suspend_state) {  in apm_ioctl()
286 			as->suspend_state = SUSPEND_ACKED;  in apm_ioctl()
304 					as->suspend_state != SUSPEND_ACKED))  in apm_ioctl()
308 			as->suspend_result = -ETIMEDOUT;  in apm_ioctl()
312 			as->suspend_state = SUSPEND_WAIT;  in apm_ioctl()
320 			as->suspend_result = pm_suspend(PM_SUSPEND_MEM);  in apm_ioctl()
324 		err = as->suspend_result;  in apm_ioctl()
325 		as->suspend_state = SUSPEND_NONE;  in apm_ioctl()
335 	struct apm_user *as = filp->private_data;  in apm_release()  local
340 	list_del(&as->list);  in apm_release()
348 	if (as->suspend_state == SUSPEND_PENDING ||  in apm_release()
349 	    as->suspend_state == SUSPEND_READ)  in apm_release()
355 	kfree(as);  in apm_release()
361 	struct apm_user *as;  in apm_open()  local
363 	as = kzalloc(sizeof(*as), GFP_KERNEL);  in apm_open()
364 	if (as) {  in apm_open()
372 		as->suser = capable(CAP_SYS_ADMIN);  in apm_open()
373 		as->writer = (filp->f_mode & FMODE_WRITE) == FMODE_WRITE;  in apm_open()
374 		as->reader = (filp->f_mode & FMODE_READ) == FMODE_READ;  in apm_open()
377 		list_add(&as->list, &apm_user_list);  in apm_open()
380 		filp->private_data = as;  in apm_open()
383 	return as ? 0 : -ENOMEM;  in apm_open()
532 	struct apm_user *as;  in apm_suspend_notifier()  local
552 		list_for_each_entry(as, &apm_user_list, list) {  in apm_suspend_notifier()
553 			if (as->suspend_state != SUSPEND_WAIT && as->reader &&  in apm_suspend_notifier()
554 			    as->writer && as->suser) {  in apm_suspend_notifier()
555 				as->suspend_state = SUSPEND_PENDING;  in apm_suspend_notifier()
557 				queue_add_event(&as->queue, apm_event);  in apm_suspend_notifier()
589 			list_for_each_entry(as, &apm_user_list, list) {  in apm_suspend_notifier()
590 				if (as->suspend_state == SUSPEND_PENDING ||  in apm_suspend_notifier()
591 				    as->suspend_state == SUSPEND_READ) {  in apm_suspend_notifier()
592 					as->suspend_state = SUSPEND_ACKTO;  in apm_suspend_notifier()
622 		list_for_each_entry(as, &apm_user_list, list) {  in apm_suspend_notifier()
623 			if (as->suspend_state == SUSPEND_ACKED) {  in apm_suspend_notifier()
630 				as->suspend_result = 0;  in apm_suspend_notifier()
631 				as->suspend_state = SUSPEND_DONE;  in apm_suspend_notifier()