diff options
| author | Mikhail Zaytsev <flashed@mail.ru> | 2018-01-06 20:15:22 +0300 |
|---|---|---|
| committer | Johan Hovold <johan@kernel.org> | 2018-01-09 12:53:27 +0100 |
| commit | e255f2078b1206e51f1abd0623902429db35fb5f (patch) | |
| tree | 898ae9dbe2fda026943ba3a10c259f30e39a8010 /drivers/usb/serial | |
| parent | 63443a0b2ab277ef677640bc32b4f94661821b70 (diff) | |
USB: serial: ark3116: move TIOCGSERIAL ioctl case to function
The patch moves TIOCGSERIAL ioctl case to get_serial_info function.
Signed-off-by: Mikhail Zaytsev <flashed@mail.ru>
[johan: keep the automatic __user pointer variable in ioctl callback ]
Signed-off-by: Johan Hovold <johan@kernel.org>
Diffstat (limited to 'drivers/usb/serial')
| -rw-r--r-- | drivers/usb/serial/ark3116.c | 32 |
1 files changed, 19 insertions, 13 deletions
diff --git a/drivers/usb/serial/ark3116.c b/drivers/usb/serial/ark3116.c index 2e957c76f61e..7796ad8e33c6 100644 --- a/drivers/usb/serial/ark3116.c +++ b/drivers/usb/serial/ark3116.c @@ -397,27 +397,33 @@ err_free: return result; } +static int ark3116_get_serial_info(struct usb_serial_port *port, + struct serial_struct __user *retinfo) +{ + struct serial_struct tmp; + + memset(&tmp, 0, sizeof(tmp)); + + tmp.type = PORT_16654; + tmp.line = port->minor; + tmp.port = port->port_number; + tmp.baud_base = 460800; + + if (copy_to_user(retinfo, &tmp, sizeof(tmp))) + return -EFAULT; + + return 0; +} + static int ark3116_ioctl(struct tty_struct *tty, unsigned int cmd, unsigned long arg) { struct usb_serial_port *port = tty->driver_data; - struct serial_struct serstruct; void __user *user_arg = (void __user *)arg; switch (cmd) { case TIOCGSERIAL: - /* XXX: Some of these values are probably wrong. */ - memset(&serstruct, 0, sizeof(serstruct)); - serstruct.type = PORT_16654; - serstruct.line = port->minor; - serstruct.port = port->port_number; - serstruct.custom_divisor = 0; - serstruct.baud_base = 460800; - - if (copy_to_user(user_arg, &serstruct, sizeof(serstruct))) - return -EFAULT; - - return 0; + return ark3116_get_serial_info(port, user_arg); default: break; } |