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HID: wacom: remove warning while disconnecting devices 

When the LED class gets removed, it actually tries to reset the LED.
However, the device being disconnected, the set_report fails.

Previously, the attempt to cut lose this last event was through unsetting
the HID drvdata, but it was not working properly. Simply reset the LED
groups to NULL makes a more efficient solution.

Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Acked-by: Jason Gerecke <jason.gerecke@wacom.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
hifive-unleashed-5.1
Benjamin Tissoires 2017-01-20 16:20:12 +01:00 committed by Jiri Kosina
parent 5b779fc520
commit c0265a9488
1 changed files with 2 additions and 3 deletions
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5
drivers/hid/wacom_sys.c
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@ -757,9 +757,6 @@ static int wacom_led_control(struct wacom *wacom)
unsigned char report_id = WAC_CMD_LED_CONTROL;
int buf_size = 9;
if (!hid_get_drvdata(wacom->hdev))
return -ENODEV;
if (!wacom->led.groups)
return -ENOTSUPP;
@ -2497,6 +2494,8 @@ static void wacom_remove(struct hid_device *hdev)
if (hdev->bus == BUS_BLUETOOTH)
device_remove_file(&hdev->dev, &dev_attr_speed);
/* make sure we don't trigger the LEDs */
wacom_led_groups_release(wacom);
wacom_release_resources(wacom);
hid_set_drvdata(hdev, NULL);