170 	int ret = 0;  in mdev_access()  local
193 		ret = -1;  in mdev_access()
197 	ret = count;  in mdev_access()
203 	return ret;  in mdev_access()
226 	int ret;  in mdpy_probe()  local
238 		ret = -ENOMEM;  in mdpy_probe()
246 		ret = -ENOMEM;  in mdpy_probe()
261 	ret = vfio_register_group_dev(&mdev_state->vdev);  in mdpy_probe()
262 	if (ret)  in mdpy_probe()
273 	return ret;  in mdpy_probe()
297 	int ret;  in mdpy_read()  local
305 			ret = mdev_access(mdev_state, (char *)&val, sizeof(val),  in mdpy_read()
307 			if (ret <= 0)  in mdpy_read()
317 			ret = mdev_access(mdev_state, (char *)&val, sizeof(val),  in mdpy_read()
319 			if (ret <= 0)  in mdpy_read()
329 			ret = mdev_access(mdev_state, (char *)&val, sizeof(val),  in mdpy_read()
331 			if (ret <= 0)  in mdpy_read()
358 	int ret;  in mdpy_write()  local
369 			ret = mdev_access(mdev_state, (char *)&val, sizeof(val),  in mdpy_write()
371 			if (ret <= 0)  in mdpy_write()
381 			ret = mdev_access(mdev_state, (char *)&val, sizeof(val),  in mdpy_write()
383 			if (ret <= 0)  in mdpy_write()
393 			ret = mdev_access(mdev_state, (char *)&val, sizeof(val),  in mdpy_write()
395 			if (ret <= 0)  in mdpy_write()
508 	int ret = 0;  in mdpy_ioctl()  local
526 		ret = mdpy_get_device_info(&info);  in mdpy_ioctl()
527 		if (ret)  in mdpy_ioctl()
528 			return ret;  in mdpy_ioctl()
551 		ret = mdpy_get_region_info(mdev_state, &info, &cap_type_id,  in mdpy_ioctl()
553 		if (ret)  in mdpy_ioctl()
554 			return ret;  in mdpy_ioctl()
575 		ret = mdpy_get_irq_info(&info);  in mdpy_ioctl()
576 		if (ret)  in mdpy_ioctl()
577 			return ret;  in mdpy_ioctl()
598 		ret = mdpy_query_gfx_plane(mdev_state, &plane);  in mdpy_ioctl()
599 		if (ret)  in mdpy_ioctl()
600 			return ret;  in mdpy_ioctl()
745 	int ret = 0;  in mdpy_dev_init()  local
747 	ret = alloc_chrdev_region(&mdpy_devt, 0, MINORMASK + 1, MDPY_NAME);  in mdpy_dev_init()
748 	if (ret < 0) {  in mdpy_dev_init()
749 		pr_err("Error: failed to register mdpy_dev, err: %d\n", ret);  in mdpy_dev_init()
750 		return ret;  in mdpy_dev_init()
756 	ret = mdev_register_driver(&mdpy_driver);  in mdpy_dev_init()
757 	if (ret)  in mdpy_dev_init()
763 		ret = PTR_ERR(mdpy_class);  in mdpy_dev_init()
770 	ret = device_register(&mdpy_dev);  in mdpy_dev_init()
771 	if (ret)  in mdpy_dev_init()
774 	ret = mdev_register_device(&mdpy_dev, &mdev_fops);  in mdpy_dev_init()
775 	if (ret)  in mdpy_dev_init()
789 	return ret;  in mdpy_dev_init()