50 	int error;  in snapshot_open()  local
58 		error = -EBUSY;  in snapshot_open()
64 		error = -ENOSYS;  in snapshot_open()
77 		error = pm_notifier_call_chain(PM_HIBERNATION_PREPARE);  in snapshot_open()
78 		if (error)  in snapshot_open()
89 		error = pm_notifier_call_chain(PM_RESTORE_PREPARE);  in snapshot_open()
90 		if (!error) {  in snapshot_open()
91 			error = create_basic_memory_bitmaps();  in snapshot_open()
92 			data->free_bitmaps = !error;  in snapshot_open()
94 		if (error)  in snapshot_open()
97 	if (error)  in snapshot_open()
107 	return error;  in snapshot_open()
200 	int error = 0;  in snapshot_ioctl()  local
228 		error = freeze_processes();  in snapshot_ioctl()
229 		if (error)  in snapshot_ioctl()
232 		error = create_basic_memory_bitmaps();  in snapshot_ioctl()
233 		if (error)  in snapshot_ioctl()
252 			error = -EPERM;  in snapshot_ioctl()
256 		error = hibernation_snapshot(data->platform_support);  in snapshot_ioctl()
257 		if (!error) {  in snapshot_ioctl()
258 			error = put_user(in_suspend, (int __user *)arg);  in snapshot_ioctl()
259 			data->ready = !freezer_test_done && !error;  in snapshot_ioctl()
268 			error = -EPERM;  in snapshot_ioctl()
271 		error = hibernation_restore(data->platform_support);  in snapshot_ioctl()
295 			error = -ENODATA;  in snapshot_ioctl()
300 		error = put_user(size, (loff_t __user *)arg);  in snapshot_ioctl()
306 		error = put_user(size, (loff_t __user *)arg);  in snapshot_ioctl()
311 			error = -ENODEV;  in snapshot_ioctl()
317 			error = put_user(offset, (loff_t __user *)arg);  in snapshot_ioctl()
319 			error = -ENOSPC;  in snapshot_ioctl()
325 			error = -ENODEV;  in snapshot_ioctl()
333 			error = -EPERM;  in snapshot_ioctl()
340 		error = suspend_devices_and_enter(PM_SUSPEND_MEM);  in snapshot_ioctl()
350 			error = hibernation_platform_enter();  in snapshot_ioctl()
355 			error = -EPERM;  in snapshot_ioctl()
360 			error = copy_from_user(&swap_area, (void __user *)arg,  in snapshot_ioctl()
362 			if (error) {  in snapshot_ioctl()
363 				error = -EFAULT;  in snapshot_ioctl()
376 					error = -ENODEV;  in snapshot_ioctl()
379 				error = -EINVAL;  in snapshot_ioctl()
385 		error = -ENOTTY;  in snapshot_ioctl()
392 	return error;  in snapshot_ioctl()