TTY: provide drivers with tty_port_install

This will be used in tty_ops->install to set tty->port (and to call
tty_standard_install).

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

1 files changed, 2 insertions, 0 deletions

diff --git a/include/linux/tty.h b/include/linux/tty.h
index 9f47ab540f65..45ef71df0e72 100644
--- a/include/linux/tty.h
+++ b/include/linux/tty.h
@@ -521,6 +521,8 @@ extern int tty_port_close_start(struct tty_port *port,
 extern void tty_port_close_end(struct tty_port *port, struct tty_struct *tty);
 extern void tty_port_close(struct tty_port *port,
                                 struct tty_struct *tty, struct file *filp);
+extern int tty_port_install(struct tty_port *port, struct tty_driver *driver,
+                                struct tty_struct *tty);
 extern int tty_port_open(struct tty_port *port,
                                 struct tty_struct *tty, struct file *filp);
 static inline int tty_port_users(struct tty_port *port)