Start to extract and build a model for a common tty_port_close()
Signed-off-by: Alan Cox <alan@linux.intel.com>
-static void isicom_close(struct tty_struct *tty, struct file *filp)
+static void isicom_close_port(struct tty_port *port)
- struct isi_port *ip = tty->driver_data;
- struct tty_port *port = &ip->port;
- struct isi_board *card;
+ struct isi_port *ip = container_of(port, struct isi_port, port);
+ struct isi_board *card = ip->card;
- BUG_ON(!ip);
-
- card = ip->card;
- if (isicom_paranoia_check(ip, tty->name, "isicom_close"))
- return;
-
/* indicate to the card that no more data can be received
on this port */
spin_lock_irqsave(&card->card_lock, flags);
/* indicate to the card that no more data can be received
on this port */
spin_lock_irqsave(&card->card_lock, flags);
}
isicom_shutdown_port(ip);
spin_unlock_irqrestore(&card->card_lock, flags);
}
isicom_shutdown_port(ip);
spin_unlock_irqrestore(&card->card_lock, flags);
+static void isicom_close(struct tty_struct *tty, struct file *filp)
+{
+ struct isi_port *ip = tty->driver_data;
+ struct tty_port *port = &ip->port;
+ if (isicom_paranoia_check(ip, tty->name, "isicom_close"))
+ return;
+
+ if (tty_port_close_start(port, tty, filp) == 0)
+ return;
+ isicom_close_port(port);
isicom_flush_buffer(tty);
isicom_flush_buffer(tty);
tty_port_close_end(port, tty);
}
tty_port_close_end(port, tty);
}