const char *guid,
struct input_dev **idev)
{
+ acpi_status status;
+ int err;
+
*idev = devm_input_allocate_device(dev);
if (!*idev)
return -ENOMEM;
(*idev)->id.bustype = BUS_HOST;
(*idev)->dev.parent = dev;
- return sparse_keymap_setup(*idev, huawei_wmi_keymap, NULL) ||
- input_register_device(*idev) ||
- wmi_install_notify_handler(guid, huawei_wmi_input_notify,
- *idev);
+ err = sparse_keymap_setup(*idev, huawei_wmi_keymap, NULL);
+ if (err)
+ return err;
+
+ err = input_register_device(*idev);
+ if (err)
+ return err;
+
+ status = wmi_install_notify_handler(guid, huawei_wmi_input_notify, *idev);
+ if (ACPI_FAILURE(status))
+ return -EIO;
+
+ return 0;
}
static void huawei_wmi_input_exit(struct device *dev, const char *guid)