[PATCH 19/50] ark3116: switch to ->get_serial()

[Al Viro]

From: Al Viro <v...@zeniv.linux.org.uk>

Signed-off-by: Al Viro <v...@zeniv.linux.org.uk>
---
 drivers/usb/serial/ark3116.c | 38 ++++++++------------------------------
 1 file changed, 8 insertions(+), 30 deletions(-)

diff --git a/drivers/usb/serial/ark3116.c b/drivers/usb/serial/ark3116.c
index 7796ad8e33c6..ff38aa8963cf 100644
--- a/drivers/usb/serial/ark3116.c
+++ b/drivers/usb/serial/ark3116.c
@@ -397,38 +397,16 @@ static int ark3116_open(struct tty_struct *tty, struct 
usb_serial_port *port)
        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)
+static int ark3116_get_serial_info(struct tty_struct *tty,
+                       struct serial_struct *ss)
 {
        struct usb_serial_port *port = tty->driver_data;
-       void __user *user_arg = (void __user *)arg;
-
-       switch (cmd) {
-       case TIOCGSERIAL:
-               return ark3116_get_serial_info(port, user_arg);
-       default:
-               break;
-       }
 
-       return -ENOIOCTLCMD;
+       ss->type = PORT_16654;
+       ss->line = port->minor;
+       ss->port = port->port_number;
+       ss->baud_base = 460800;
+       return 0;
 }
 
 static int ark3116_tiocmget(struct tty_struct *tty)
@@ -668,7 +646,7 @@ static struct usb_serial_driver ark3116_device = {
        .port_remove =          ark3116_port_remove,
        .set_termios =          ark3116_set_termios,
        .init_termios =         ark3116_init_termios,
-       .ioctl =                ark3116_ioctl,
+       .get_serial =           ark3116_get_serial_info,
        .tiocmget =             ark3116_tiocmget,
        .tiocmset =             ark3116_tiocmset,
        .tiocmiwait =           usb_serial_generic_tiocmiwait,
-- 
2.11.0