On Mon, 2012-09-17 at 16:53 +0800, Axel Lin wrote:
> OLEDs/LED are not critical for tablet functioning thus ignore OLED/LED
> initialisation failures.
>
> This patch does clean up all the sysfs attribute files in error paths.
>
> Signed-off-by: Axel Lin <axel....@gmail.com>
> ---
> drivers/hid/hid-wacom.c | 23 ++++++++++++++---------
> 1 file changed, 14 insertions(+), 9 deletions(-)
>
> diff --git a/drivers/hid/hid-wacom.c b/drivers/hid/hid-wacom.c
> index a0fafac..2f60da9 100644
> --- a/drivers/hid/hid-wacom.c
> +++ b/drivers/hid/hid-wacom.c
> @@ -858,11 +858,9 @@ OLED_INIT(7);
> if (hdev->product == USB_DEVICE_ID_WACOM_INTUOS4_BLUETOOTH) {
> sprintf(hdev->name, "%s", "Wacom Intuos4 WL");
> ret = wacom_initialize_leds(hdev);
> - if (ret) {
> + if (ret)
> hid_warn(hdev,
> "can't create led attribute, err: %d\n", ret);
> - goto destroy_leds;
> - }
> }
>
> wdata->battery.properties = wacom_battery_props;
> @@ -875,8 +873,8 @@ OLED_INIT(7);
>
> ret = power_supply_register(&hdev->dev, &wdata->battery);
> if (ret) {
> - hid_warn(hdev, "can't create sysfs battery attribute, err:
> %d\n",
> - ret);
> + hid_err(hdev, "can't create sysfs battery attribute, err: %d\n",
> + ret);
> goto err_battery;
> }
>
> @@ -891,8 +889,8 @@ OLED_INIT(7);
>
> ret = power_supply_register(&hdev->dev, &wdata->ac);
> if (ret) {
> - hid_warn(hdev,
> - "can't create ac battery attribute, err: %d\n", ret);
> + hid_err(hdev,
> + "can't create ac battery attribute, err: %d\n", ret);
> goto err_ac;
> }
>
> @@ -902,10 +900,17 @@ OLED_INIT(7);
> err_ac:
> power_supply_unregister(&wdata->battery);
> err_battery:
> + wacom_destroy_leds(hdev);
> + device_remove_file(&hdev->dev, &dev_attr_oled0_img);
> + device_remove_file(&hdev->dev, &dev_attr_oled1_img);
> + device_remove_file(&hdev->dev, &dev_attr_oled2_img);
> + device_remove_file(&hdev->dev, &dev_attr_oled3_img);
> + device_remove_file(&hdev->dev, &dev_attr_oled4_img);
> + device_remove_file(&hdev->dev, &dev_attr_oled5_img);
> + device_remove_file(&hdev->dev, &dev_attr_oled6_img);
> + device_remove_file(&hdev->dev, &dev_attr_oled7_img);
> device_remove_file(&hdev->dev, &dev_attr_speed);
> hid_hw_stop(hdev);
> -destroy_leds:
> - wacom_destroy_leds(hdev);
> err_free:
> kfree(wdata);
> return ret;
Tested-by: Przemo Firszt <prz...@firszt.eu>
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