diff options
Diffstat (limited to 'drivers/hid/wacom_wac.c')
| -rw-r--r-- | drivers/hid/wacom_wac.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/hid/wacom_wac.c b/drivers/hid/wacom_wac.c index fd989e09ae2d..70a9e47b215a 100644 --- a/drivers/hid/wacom_wac.c +++ b/drivers/hid/wacom_wac.c @@ -2036,6 +2036,8 @@ static void wacom_wac_pen_event(struct hid_device *hdev, struct hid_field *field wacom_wac->hid_data.sense_state = value; return; case HID_DG_BATTERYSTRENGTH: + if (value == 0) /* "not available" */ + break; value = value * 100 / (field->logical_maximum - field->logical_minimum); wacom_wac->hid_data.battery_capacity = value; wacom_wac->hid_data.bat_connected = 1; |