From: Sebastian Andrzej Siewior Date: Sat, 3 Feb 2018 11:27:23 +0000 (+0100) Subject: serial: core: mark port as initialized in autoconfig X-Git-Tag: rel_imx_4.19.35_1.1.0~10535^2~4 X-Git-Url: https://git.somdevices.com/?a=commitdiff_plain;h=714569064adee3c114a2a6490735b94abe269068;p=linux.git 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 Tested-by: Nikola Ciprich Cc: Signed-off-by: Sebastian Andrzej Siewior Tested-by: Nikola Ciprich Acked-by: Johan Hovold Signed-off-by: Greg Kroah-Hartman --- 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; }