[PATCH 26/50] mos7840: 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/mos7840.c | 40 +++++++++++++++++-----------------------
 1 file changed, 17 insertions(+), 23 deletions(-)

diff --git a/drivers/usb/serial/mos7840.c b/drivers/usb/serial/mos7840.c
index b42bad85097a..8d0b80e44191 100644
--- a/drivers/usb/serial/mos7840.c
+++ b/drivers/usb/serial/mos7840.c
@@ -1931,27 +1931,27 @@ static int mos7840_get_lsr_info(struct tty_struct *tty,
  *      function to get information about serial port
  *****************************************************************************/
 
-static int mos7840_get_serial_info(struct moschip_port *mos7840_port,
-                                  struct serial_struct __user *retinfo)
+static int mos7840_get_serial_info(struct tty_struct *tty,
+                                  struct serial_struct *ss)
 {
-       struct serial_struct tmp;
+       struct usb_serial_port *port = tty->driver_data;
+       struct moschip_port *mos7840_port;
 
-       if (mos7840_port == NULL)
+       if (mos7840_port_paranoia_check(port, __func__))
                return -1;
 
-       memset(&tmp, 0, sizeof(tmp));
-
-       tmp.type = PORT_16550A;
-       tmp.line = mos7840_port->port->minor;
-       tmp.port = mos7840_port->port->port_number;
-       tmp.irq = 0;
-       tmp.xmit_fifo_size = NUM_URBS * URB_TRANSFER_BUFFER_SIZE;
-       tmp.baud_base = 9600;
-       tmp.close_delay = 5 * HZ;
-       tmp.closing_wait = 30 * HZ;
+       mos7840_port = mos7840_get_port_private(port);
+       if (mos7840_port == NULL)
+               return -1;
 
-       if (copy_to_user(retinfo, &tmp, sizeof(*retinfo)))
-               return -EFAULT;
+       ss->type = PORT_16550A;
+       ss->line = mos7840_port->port->minor;
+       ss->port = mos7840_port->port->port_number;
+       ss->irq = 0;
+       ss->xmit_fifo_size = NUM_URBS * URB_TRANSFER_BUFFER_SIZE;
+       ss->baud_base = 9600;
+       ss->close_delay = 5 * HZ;
+       ss->closing_wait = 30 * HZ;
        return 0;
 }
 
@@ -1982,13 +1982,6 @@ static int mos7840_ioctl(struct tty_struct *tty,
                dev_dbg(&port->dev, "%s TIOCSERGETLSR\n", __func__);
                return mos7840_get_lsr_info(tty, argp);
 
-       case TIOCGSERIAL:
-               dev_dbg(&port->dev, "%s TIOCGSERIAL\n", __func__);
-               return mos7840_get_serial_info(mos7840_port, argp);
-
-       case TIOCSSERIAL:
-               dev_dbg(&port->dev, "%s TIOCSSERIAL\n", __func__);
-               break;
        default:
                break;
        }
@@ -2376,6 +2369,7 @@ static struct usb_serial_driver moschip7840_4port_device 
= {
        .calc_num_ports = mos7840_calc_num_ports,
        .probe = mos7840_probe,
        .ioctl = mos7840_ioctl,
+       .get_serial = mos7840_get_serial_info,
        .set_termios = mos7840_set_termios,
        .break_ctl = mos7840_break,
        .tiocmget = mos7840_tiocmget,
-- 
2.11.0