diff --git a/drivers/input/touchscreen/ad7877.c b/drivers/input/touchscreen/ad7877.c index 96c0a0d4b69c2819497bb7cecad1de64d7c290a3..b7de78e8273742cc515f1e5491282c04d0ca6ba8 100644 --- a/drivers/input/touchscreen/ad7877.c +++ b/drivers/input/touchscreen/ad7877.c @@ -360,6 +360,13 @@ static int ad7877_rx(struct ad7877 *ts) Rt /= z1; Rt = (Rt + 2047) >> 12; + /* + * Sample found inconsistent, pressure is beyond + * the maximum. Don't report it to user space. + */ + if (Rt > ts->pressure_max) + return -EINVAL; + if (!timer_pending(&ts->timer)) input_report_key(input_dev, BTN_TOUCH, 1);