If a tty is opened on a serial console, don't drop DTR on last tty close, on tty hangup, or when resetting port hardware via TIOCSSERIAL and TIOCSERCONFIG ioctls.
Signed-off-by: Peter Hurley <[email protected]> --- drivers/tty/serial/serial_core.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/tty/serial/serial_core.c b/drivers/tty/serial/serial_core.c index b68550d..498b149 100644 --- a/drivers/tty/serial/serial_core.c +++ b/drivers/tty/serial/serial_core.c @@ -239,7 +239,8 @@ static void uart_shutdown(struct tty_struct *tty, struct uart_state *state) /* * Turn off DTR and RTS early. */ - if (!tty || (tty->termios.c_cflag & HUPCL)) + if (!uart_console(uport) && + (!tty || (tty->termios.c_cflag & HUPCL))) uart_clear_mctrl(uport, TIOCM_DTR | TIOCM_RTS); uart_port_shutdown(port); -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
