From c0265a9488c2a3aea315b61a9239d5494997fa71 Mon Sep 17 00:00:00 2001 From: Benjamin Tissoires Date: Fri, 20 Jan 2017 16:20:12 +0100 Subject: [PATCH] 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 Acked-by: Jason Gerecke Signed-off-by: Jiri Kosina --- drivers/hid/wacom_sys.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/drivers/hid/wacom_sys.c b/drivers/hid/wacom_sys.c index 0a817e69e029..4c0fa3e7ea00 100644 --- a/drivers/hid/wacom_sys.c +++ b/drivers/hid/wacom_sys.c @@ -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); -- 2.39.5