diff options
Diffstat (limited to 'drivers/serial')
| -rw-r--r-- | drivers/serial/serial_core.c | 19 |
1 files changed, 9 insertions, 10 deletions
diff --git a/drivers/serial/serial_core.c b/drivers/serial/serial_core.c index a55751a12c3..3d2acc2265f 100644 --- a/drivers/serial/serial_core.c +++ b/drivers/serial/serial_core.c @@ -1520,8 +1520,16 @@ static void uart_dtr_rts(struct tty_port *port, int onoff) struct uart_state *state = container_of(port, struct uart_state, port); struct uart_port *uport = state->uart_port; - if (onoff) + if (onoff) { uart_set_mctrl(uport, TIOCM_DTR | TIOCM_RTS); + + /* + * If this is the first open to succeed, + * adjust things to suit. + */ + if (!test_and_set_bit(ASYNCB_NORMAL_ACTIVE, &port->flags)) + uart_update_termios(port->tty, state); + } else uart_clear_mctrl(uport, TIOCM_DTR | TIOCM_RTS); } @@ -1636,15 +1644,6 @@ static int uart_open(struct tty_struct *tty, struct file *filp) if (retval == 0) retval = tty_port_block_til_ready(port, tty, filp); - /* - * If this is the first open to succeed, adjust things to suit. - */ - if (retval == 0 && !(port->flags & ASYNC_NORMAL_ACTIVE)) { - set_bit(ASYNCB_NORMAL_ACTIVE, &port->flags); - - uart_update_termios(tty, state); - } - fail: return retval; } |