diff --git a/drivers/tty/tty_io.c b/drivers/tty/tty_io.c index ee80dfbd5442b034451e396cd66608e41e8e43bb..687250ec8032359f7ccdd0bfbd2b6e8b3bb4e1f5 100644 --- a/drivers/tty/tty_io.c +++ b/drivers/tty/tty_io.c @@ -1373,7 +1373,13 @@ struct tty_struct *tty_init_dev(struct tty_driver *driver, int idx) return ERR_PTR(retval); } -static void tty_free_termios(struct tty_struct *tty) +/** + * tty_save_termios() - save tty termios data in driver table + * @tty: tty whose termios data to save + * + * Locking: Caller guarantees serialisation with tty_init_termios(). + */ +void tty_save_termios(struct tty_struct *tty) { struct ktermios *tp; int idx = tty->index; @@ -1392,6 +1398,7 @@ static void tty_free_termios(struct tty_struct *tty) } *tp = tty->termios; } +EXPORT_SYMBOL_GPL(tty_save_termios); /** * tty_flush_works - flush all works of a tty/pty pair @@ -1491,7 +1498,7 @@ static void release_tty(struct tty_struct *tty, int idx) WARN_ON(!mutex_is_locked(&tty_mutex)); if (tty->ops->shutdown) tty->ops->shutdown(tty); - tty_free_termios(tty); + tty_save_termios(tty); tty_driver_remove_tty(tty->driver, tty); tty->port->itty = NULL; if (tty->link) diff --git a/drivers/usb/serial/console.c b/drivers/usb/serial/console.c index 17940589c647cfdcbcd81e7e3b0c5d30dec6e8b8..7d289302ff6cfd22578885acbbadb6a048a9f5af 100644 --- a/drivers/usb/serial/console.c +++ b/drivers/usb/serial/console.c @@ -101,7 +101,6 @@ static int usb_console_setup(struct console *co, char *options) cflag |= PARENB; break; } - co->cflag = cflag; /* * no need to check the index here: if the index is wrong, console @@ -164,6 +163,7 @@ static int usb_console_setup(struct console *co, char *options) serial->type->set_termios(tty, port, &dummy); tty_port_tty_set(&port->port, NULL); + tty_save_termios(tty); tty_kref_put(tty); } tty_port_set_initialized(&port->port, 1); diff --git a/include/linux/tty.h b/include/linux/tty.h index 414db2bce7150cc94c8b24cc4106161511e4ead1..392138fe59b6929ded24b6dabf317962c5fb3574 100644 --- a/include/linux/tty.h +++ b/include/linux/tty.h @@ -556,6 +556,7 @@ extern struct tty_struct *tty_init_dev(struct tty_driver *driver, int idx); extern void tty_release_struct(struct tty_struct *tty, int idx); extern int tty_release(struct inode *inode, struct file *filp); extern void tty_init_termios(struct tty_struct *tty); +extern void tty_save_termios(struct tty_struct *tty); extern int tty_standard_install(struct tty_driver *driver, struct tty_struct *tty);