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fwserial: switch to ->[sg]et_serial() 

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Al Viro 2018-09-11 21:58:08 -04:00
parent 617a281104
commit b98e5a6791
1 changed files with 28 additions and 38 deletions
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66
drivers/staging/fwserial/fwserial.c
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@ -1209,42 +1209,40 @@ static int wait_msr_change(struct fwtty_port *port, unsigned long mask)
check_msr_delta(port, mask, &prev));
}
static int get_serial_info(struct fwtty_port *port,
struct serial_struct __user *info)
static int get_serial_info(struct tty_struct *tty,
struct serial_struct *ss)
{
struct serial_struct tmp;
memset(&tmp, 0, sizeof(tmp));
tmp.type = PORT_UNKNOWN;
tmp.line = port->port.tty->index;
tmp.flags = port->port.flags;
tmp.xmit_fifo_size = FWTTY_PORT_TXFIFO_LEN;
tmp.baud_base = 400000000;
tmp.close_delay = port->port.close_delay;
return (copy_to_user(info, &tmp, sizeof(*info))) ? -EFAULT : 0;
struct fwtty_port *port = tty->driver_data;
mutex_lock(&port->port.mutex);
ss->type = PORT_UNKNOWN;
ss->line = port->port.tty->index;
ss->flags = port->port.flags;
ss->xmit_fifo_size = FWTTY_PORT_TXFIFO_LEN;
ss->baud_base = 400000000;
ss->close_delay = port->port.close_delay;
mutex_unlock(&port->port.mutex);
return 0;
}
static int set_serial_info(struct fwtty_port *port,
struct serial_struct __user *info)
static int set_serial_info(struct tty_struct *tty,
struct serial_struct *ss)
{
struct serial_struct tmp;
struct fwtty_port *port = tty->driver_data;
if (copy_from_user(&tmp, info, sizeof(tmp)))
return -EFAULT;
if (tmp.irq != 0 || tmp.port != 0 || tmp.custom_divisor != 0 ||
tmp.baud_base != 400000000)
if (ss->irq != 0 || ss->port != 0 || ss->custom_divisor != 0 ||
ss->baud_base != 400000000)
return -EPERM;
mutex_lock(&port->port.mutex);
if (!capable(CAP_SYS_ADMIN)) {
if (((tmp.flags & ~ASYNC_USR_MASK) !=
(port->port.flags & ~ASYNC_USR_MASK)))
if (((ss->flags & ~ASYNC_USR_MASK) !=
(port->port.flags & ~ASYNC_USR_MASK))) {
mutex_unlock(&port->port.mutex);
return -EPERM;
} else {
port->port.close_delay = tmp.close_delay * HZ / 100;
}
}
port->port.close_delay = ss->close_delay * HZ / 100;
mutex_unlock(&port->port.mutex);
return 0;
}
@ -1256,18 +1254,6 @@ static int fwtty_ioctl(struct tty_struct *tty, unsigned int cmd,
int err;
switch (cmd) {
case TIOCGSERIAL:
mutex_lock(&port->port.mutex);
err = get_serial_info(port, (void __user *)arg);
mutex_unlock(&port->port.mutex);
break;
case TIOCSSERIAL:
mutex_lock(&port->port.mutex);
err = set_serial_info(port, (void __user *)arg);
mutex_unlock(&port->port.mutex);
break;
case TIOCMIWAIT:
err = wait_msr_change(port, arg);
break;
@ -1557,6 +1543,8 @@ static const struct tty_operations fwtty_ops = {
.tiocmget = fwtty_tiocmget,
.tiocmset = fwtty_tiocmset,
.get_icount = fwtty_get_icount,
.set_serial = set_serial_info,
.get_serial = get_serial_info,
.proc_show = fwtty_proc_show,
};
@ -1578,6 +1566,8 @@ static const struct tty_operations fwloop_ops = {
.tiocmget = fwtty_tiocmget,
.tiocmset = fwtty_tiocmset,
.get_icount = fwtty_get_icount,
.set_serial = set_serial_info,
.get_serial = get_serial_info,
};
static inline int mgmt_pkt_expected_len(__be16 code)