diff options
Diffstat (limited to 'drivers/tty/tty_port.c')
| -rw-r--r-- | drivers/tty/tty_port.c | 18 |
1 files changed, 10 insertions, 8 deletions
diff --git a/drivers/tty/tty_port.c b/drivers/tty/tty_port.c index 20426ccbd58..969c3e675a7 100644 --- a/drivers/tty/tty_port.c +++ b/drivers/tty/tty_port.c @@ -487,14 +487,16 @@ int tty_port_close_start(struct tty_port *port, set_bit(ASYNCB_CLOSING, &port->flags); tty->closing = 1; spin_unlock_irqrestore(&port->lock, flags); - /* Don't block on a stalled port, just pull the chain */ - if (tty->flow_stopped) - tty_driver_flush_buffer(tty); - if (test_bit(ASYNCB_INITIALIZED, &port->flags) && - port->closing_wait != ASYNC_CLOSING_WAIT_NONE) - tty_wait_until_sent_from_close(tty, port->closing_wait); - if (port->drain_delay) - tty_port_drain_delay(port, tty); + + if (test_bit(ASYNCB_INITIALIZED, &port->flags)) { + /* Don't block on a stalled port, just pull the chain */ + if (tty->flow_stopped) + tty_driver_flush_buffer(tty); + if (port->closing_wait != ASYNC_CLOSING_WAIT_NONE) + tty_wait_until_sent_from_close(tty, port->closing_wait); + if (port->drain_delay) + tty_port_drain_delay(port, tty); + } /* Flush the ldisc buffering */ tty_ldisc_flush(tty); |