4.13-stable review patch. If anyone has any objections, please let me know.
------------------ From: Aaron Armstrong Skomra <sko...@gmail.com> commit 74aebed6dc13425233f2224668353cff7a112776 upstream. Commit a50aac7193f1 introduces 'led.groups' and adds EKR support for these groups. However, unlike the other devices with LEDs, the EKR's LEDs are read-only and we shouldn't attempt to control them in wacom_led_control(). See bug: https://sourceforge.net/p/linuxwacom/bugs/342/ Fixes: a50aac7193f1 ("HID: wacom: leds: dynamically allocate LED groups") Signed-off-by: Aaron Armstrong Skomra <aaron.sko...@wacom.com> Reviewed-by: Jason Gerecke <jason.gere...@wacom.com> Signed-off-by: Jiri Kosina <jkos...@suse.cz> Signed-off-by: Greg Kroah-Hartman <gre...@linuxfoundation.org> --- drivers/hid/wacom_sys.c | 3 +++ 1 file changed, 3 insertions(+) --- a/drivers/hid/wacom_sys.c +++ b/drivers/hid/wacom_sys.c @@ -766,6 +766,9 @@ static int wacom_led_control(struct waco if (!wacom->led.groups) return -ENOTSUPP; + if (wacom->wacom_wac.features.type == REMOTE) + return -ENOTSUPP; + if (wacom->wacom_wac.pid) { /* wireless connected */ report_id = WAC_CMD_WL_LED_CONTROL; buf_size = 13;
