* @new_range: pointer to the IO range to be registered.
*
* Returns 0 on success, the error code in case of failure.
+ * If the range already exists, -EEXIST will be returned, which should be
+ * considered a success.
*
* Register a new IO range node in the IO range list.
*/
list_for_each_entry(range, &io_range_list, list) {
if (range->fwnode == new_range->fwnode) {
/* range already there */
+ ret = -EEXIST;
goto end_register;
}
if (range->flags == LOGIC_PIO_CPU_MMIO &&