diff options
| -rw-r--r-- | drivers/char/tty_port.c | 13 |
1 files changed, 8 insertions, 5 deletions
diff --git a/drivers/char/tty_port.c b/drivers/char/tty_port.c index 41b314cfda47..dd471d63fae2 100644 --- a/drivers/char/tty_port.c +++ b/drivers/char/tty_port.c @@ -339,6 +339,14 @@ int tty_port_close_start(struct tty_port *port, timeout = 2 * HZ; schedule_timeout_interruptible(timeout); } + /* Flush the ldisc buffering */ + tty_ldisc_flush(tty); + + /* Drop DTR/RTS if HUPCL is set. This causes any attached modem to + hang up the line */ + if (tty->termios->c_cflag & HUPCL) + tty_port_lower_dtr_rts(port); + /* Don't call port->drop for the last reference. Callers will want to drop the last active reference in ->shutdown() or the tty shutdown path */ @@ -350,11 +358,6 @@ void tty_port_close_end(struct tty_port *port, struct tty_struct *tty) { unsigned long flags; - tty_ldisc_flush(tty); - - if (tty->termios->c_cflag & HUPCL) - tty_port_lower_dtr_rts(port); - spin_lock_irqsave(&port->lock, flags); tty->closing = 0; |