HID: wacom: Reset stylus buttons - Intuos4 WL

Stylus buttons have to be resetted when going out-of-prox.

Signed-off-by: Przemo Firszt <przemo@firszt.eu>
Reviewed-by: Jason Gerecke <killertofu@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
diff --git a/drivers/hid/hid-wacom.c b/drivers/hid/hid-wacom.c
index 58aedbc..f9af474 100644
--- a/drivers/hid/hid-wacom.c
+++ b/drivers/hid/hid-wacom.c
@@ -352,6 +352,8 @@
 	case 0x80: /* Out of proximity report */
 		input_report_key(input, BTN_TOUCH, 0);
 		input_report_abs(input, ABS_PRESSURE, 0);
+		input_report_key(input, BTN_STYLUS, 0);
+		input_report_key(input, BTN_STYLUS2, 0);
 		input_report_key(input, wdata->tool, 0);
 		input_report_abs(input, ABS_MISC, 0);
 		input_event(input, EV_MSC, MSC_SERIAL, wdata->serial);