* @drv: the driver structure to register
*
* Adds the driver structure to the list of registered drivers
- * Returns the number of DIO devices which were claimed by the driver
- * during registration. The driver remains registered even if the
- * return value is zero.
+ * Returns zero or a negative error value.
*/
int dio_register_driver(struct dio_driver *drv)
{
- int count = 0;
-
/* initialize common driver fields */
drv->driver.name = drv->name;
drv->driver.bus = &dio_bus_type;
/* register with core */
- count = driver_register(&drv->driver);
- return count ? count : 1;
+ return driver_register(&drv->driver);
}