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greybus/uart: switch to ->[sg]et_serial() 

Reviewed-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Al Viro 2018-09-11 21:58:45 -04:00
parent b98e5a6791
commit 0aad5ad563
1 changed files with 17 additions and 28 deletions
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45
drivers/staging/greybus/uart.c
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@ -616,40 +616,33 @@ static void gb_tty_unthrottle(struct tty_struct *tty)
}
}
static int get_serial_info(struct gb_tty *gb_tty,
struct serial_struct __user *info)
static int get_serial_info(struct tty_struct *tty,
struct serial_struct *ss)
{
struct serial_struct tmp;
struct gb_tty *gb_tty = tty->driver_data;
memset(&tmp, 0, sizeof(tmp));
tmp.type = PORT_16550A;
tmp.line = gb_tty->minor;
tmp.xmit_fifo_size = 16;
tmp.baud_base = 9600;
tmp.close_delay = gb_tty->port.close_delay / 10;
tmp.closing_wait =
ss->type = PORT_16550A;
ss->line = gb_tty->minor;
ss->xmit_fifo_size = 16;
ss->baud_base = 9600;
ss->close_delay = gb_tty->port.close_delay / 10;
ss->closing_wait =
gb_tty->port.closing_wait == ASYNC_CLOSING_WAIT_NONE ?
ASYNC_CLOSING_WAIT_NONE : gb_tty->port.closing_wait / 10;
if (copy_to_user(info, &tmp, sizeof(tmp)))
return -EFAULT;
return 0;
}
static int set_serial_info(struct gb_tty *gb_tty,
struct serial_struct __user *newinfo)
static int set_serial_info(struct tty_struct *tty,
struct serial_struct *ss)
{
struct serial_struct new_serial;
struct gb_tty *gb_tty = tty->driver_data;
unsigned int closing_wait;
unsigned int close_delay;
int retval = 0;
if (copy_from_user(&new_serial, newinfo, sizeof(new_serial)))
return -EFAULT;
close_delay = new_serial.close_delay * 10;
closing_wait = new_serial.closing_wait == ASYNC_CLOSING_WAIT_NONE ?
ASYNC_CLOSING_WAIT_NONE : new_serial.closing_wait * 10;
close_delay = ss->close_delay * 10;
closing_wait = ss->closing_wait == ASYNC_CLOSING_WAIT_NONE ?
ASYNC_CLOSING_WAIT_NONE : ss->closing_wait * 10;
mutex_lock(&gb_tty->port.mutex);
if (!capable(CAP_SYS_ADMIN)) {
@ -728,12 +721,6 @@ static int gb_tty_ioctl(struct tty_struct *tty, unsigned int cmd,
struct gb_tty *gb_tty = tty->driver_data;
switch (cmd) {
case TIOCGSERIAL:
return get_serial_info(gb_tty,
(struct serial_struct __user *)arg);
case TIOCSSERIAL:
return set_serial_info(gb_tty,
(struct serial_struct __user *)arg);
case TIOCMIWAIT:
return wait_serial_change(gb_tty, arg);
}
@ -818,6 +805,8 @@ static const struct tty_operations gb_ops = {
.tiocmget = gb_tty_tiocmget,
.tiocmset = gb_tty_tiocmset,
.get_icount = gb_tty_get_icount,
.set_serial = set_serial_info,
.get_serial = get_serial_info,
};
static const struct tty_port_operations gb_port_ops = {