diff options
Diffstat (limited to 'drivers/usb/serial/ftdi_sio.c')
| -rw-r--r-- | drivers/usb/serial/ftdi_sio.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/usb/serial/ftdi_sio.c b/drivers/usb/serial/ftdi_sio.c index 2b9b5119ff13..b774f9d32d4f 100644 --- a/drivers/usb/serial/ftdi_sio.c +++ b/drivers/usb/serial/ftdi_sio.c @@ -1716,9 +1716,12 @@ static ssize_t latency_timer_store(struct device *dev, { struct usb_serial_port *port = to_usb_serial_port(dev); struct ftdi_private *priv = usb_get_serial_port_data(port); - int v = simple_strtoul(valbuf, NULL, 10); + u8 v; int rv; + if (kstrtou8(valbuf, 10, &v)) + return -EINVAL; + priv->latency = v; rv = write_latency_timer(port); if (rv < 0) |