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authorBenjamin Tissoires <benjamin.tissoires@redhat.com>2017-01-20 18:20:12 +0300
committerJiri Kosina <jkosina@suse.cz>2017-01-23 13:00:13 +0300
commitc0265a9488c2a3aea315b61a9239d5494997fa71 (patch)
tree61a1ddd65c1bf40258af481c3b15a235c96e7b82
parent5b779fc52020ac6f5beea31c5eafc3d25cf70dc1 (diff)
downloadlinux-c0265a9488c2a3aea315b61a9239d5494997fa71.tar.xz
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>
-rw-r--r--drivers/hid/wacom_sys.c5
1 files 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);