@@ -2318,36 +2318,21 @@ static int sony_battery_probe(struct sony_sc *sc, int append_dev_id)
sc->battery_desc.get_property = sony_battery_get_property;
sc->battery_desc.type = POWER_SUPPLY_TYPE_BATTERY;
sc->battery_desc.use_for_apm = 0;
- sc->battery_desc.name = kasprintf(GFP_KERNEL, battery_str_fmt,
- sc->mac_address, sc->device_id);
+ sc->battery_desc.name = devm_kasprintf(&hdev->dev, GFP_KERNEL,
+ battery_str_fmt, sc->mac_address, sc->device_id);
if (!sc->battery_desc.name)
return -ENOMEM;
- sc->battery = power_supply_register(&hdev->dev, &sc->battery_desc,
+ sc->battery = devm_power_supply_register(&hdev->dev, &sc->battery_desc,
&psy_cfg);
if (IS_ERR(sc->battery)) {
ret = PTR_ERR(sc->battery);
hid_err(hdev, "Unable to register battery device\n");
- goto err_free;
+ return ret;
}
power_supply_powers(sc->battery, &hdev->dev);
return 0;
-
-err_free:
- kfree(sc->battery_desc.name);
- sc->battery_desc.name = NULL;
- return ret;
-}
-
-static void sony_battery_remove(struct sony_sc *sc)
-{
- if (!sc->battery_desc.name)
- return;
-
- power_supply_unregister(sc->battery);
- kfree(sc->battery_desc.name);
- sc->battery_desc.name = NULL;
}
/*
@@ -2805,8 +2790,6 @@ static int sony_input_configured(struct hid_device *hdev,
device_remove_file(&sc->hdev->dev, &dev_attr_firmware_version);
if (sc->hw_version)
device_remove_file(&sc->hdev->dev, &dev_attr_hardware_version);
- if (sc->quirks & SONY_BATTERY_SUPPORT)
- sony_battery_remove(sc);
sony_cancel_work_sync(sc);
kfree(sc->output_report_dmabuf);
sony_remove_dev_list(sc);
@@ -2885,9 +2868,6 @@ static void sony_remove(struct hid_device *hdev)
hid_hw_close(hdev);
- if (sc->quirks & SONY_BATTERY_SUPPORT)
- sony_battery_remove(sc);
-
if (sc->quirks & DUALSHOCK4_CONTROLLER_BT)
device_remove_file(&sc->hdev->dev, &dev_attr_bt_poll_interval);
HID: hid-sony.c: Use devm_ api to simplify sony_battery_probe() Using devm_ calls, the resources of the Sony game devices's features are tied to the main device handle, making it easier to handle errors and teardown inside the device driver. Altogether, this reduces complexity of the driver source. Signed-off-by: Hanno Zulla <kontakt@hanno.de> --- drivers/hid/hid-sony.c | 28 ++++------------------------ 1 file changed, 4 insertions(+), 24 deletions(-)