This is a note to let you know that I've just added the patch titled
serial: core: mark port as initialized in autoconfig
to my tty git tree which can be found at git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty.git in the tty-linus branch.
The patch will show up in the next release of the linux-next tree (usually sometime within the next 24 hours during the week.)
The patch will hopefully also be merged in Linus's tree for the next -rc kernel release.
If you have any questions about this process, please let me know.
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
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(+)
diff --git a/drivers/tty/serial/serial_core.c b/drivers/tty/serial/serial_core.c index c8dde56b532b..35b9201db3b4 100644 --- a/drivers/tty/serial/serial_core.c +++ b/drivers/tty/serial/serial_core.c @@ -1144,6 +1144,8 @@ static int uart_do_autoconfig(struct tty_struct *tty,struct uart_state *state) 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; }