| From 714569064adee3c114a2a6490735b94abe269068 Mon Sep 17 00:00:00 2001 |
| From: Sebastian Andrzej Siewior <bigeasy@linutronix.de> |
| Date: Sat, 3 Feb 2018 12:27:23 +0100 |
| Subject: serial: core: mark port as initialized in autoconfig |
| |
| From: Sebastian Andrzej Siewior <bigeasy@linutronix.de> |
| |
| commit 714569064adee3c114a2a6490735b94abe269068 upstream. |
| |
| This is a followup on 44117a1d1732 ("serial: core: mark port as |
| initialized after successful IRQ change"). |
| Nikola has been using autoconfig via setserial and reported a crash |
| similar to what I fixed in the earlier mentioned commit. Here I do the |
| same fixup for the autoconfig. I wasn't sure that this is the right |
| approach. Nikola confirmed that it fixes his crash. |
| |
| Fixes: b3b576461864 ("tty: serial_core: convert uart_open to use tty_port_open") |
| Link: http://lkml.kernel.org/r/20180131072000.GD1853@localhost.localdomain |
| Reported-by: Nikola Ciprich <nikola.ciprich@linuxbox.cz> |
| Tested-by: Nikola Ciprich <nikola.ciprich@linuxbox.cz> |
| Cc: <stable@vger.kernel.org> |
| Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> |
| Tested-by: Nikola Ciprich <nikola.ciprich@linuxbox.cz> |
| Acked-by: Johan Hovold <johan@kernel.org> |
| Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
| |
| --- |
| drivers/tty/serial/serial_core.c | 2 ++ |
| 1 file changed, 2 insertions(+) |
| |
| --- a/drivers/tty/serial/serial_core.c |
| +++ b/drivers/tty/serial/serial_core.c |
| @@ -1157,6 +1157,8 @@ static int uart_do_autoconfig(struct tty |
| uport->ops->config_port(uport, flags); |
| |
| ret = uart_startup(tty, state, 1); |
| + if (ret == 0) |
| + tty_port_set_initialized(port, true); |
| if (ret > 0) |
| ret = 0; |
| } |
