TTY: add port -> tty link

[linux-2.6-block.git] / drivers / tty / tty_io.c

diff --git a/drivers/tty/tty_io.c b/drivers/tty/tty_io.c
index f90b6217b3ba0d23f1740d90dcccdc464406b276..202008f38ca343d74b182fa89b40292863431dc8 100644 (file)
--- a/drivers/tty/tty_io.c
+++ b/drivers/tty/tty_io.c
@@ -1417,6 +1417,8 @@ struct tty_struct *tty_init_dev(struct tty_driver *driver, int idx)
                        "%s: %s driver does not set tty->port. This will crash the kernel later. Fix the driver!\n",
                        __func__, tty->driver->name);
 
+       tty->port->itty = tty;
+
        /*
         * Structures all installed ... call the ldisc open routines.
         * If we fail here just call release_tty to clean up.  No need
@@ -1552,6 +1554,7 @@ static void release_tty(struct tty_struct *tty, int idx)
                tty->ops->shutdown(tty);
        tty_free_termios(tty);
        tty_driver_remove_tty(tty->driver, tty);
+       tty->port->itty = NULL;
 
        if (tty->link)
                tty_kref_put(tty->link);