Patch "serial: core: mark port as initialized in autoconfig" has been added to the 4.15-stable tree

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 the 4.15-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
serial-core-mark-port-as-initialized-in-autoconfig.patch
and it can be found in the queue-4.15 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree, please let <[email protected]> know about it.

From: Sebastian Andrzej Siewior <[email protected]>
Date: Sat, 3 Feb 2018 12:27:23 +0100
Subject: serial: core: mark port as initialized in autoconfig

From: Sebastian Andrzej Siewior <[email protected]>

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.

---
 drivers/tty/serial/serial_core.c |    2 ++
 1 file changed, 2 insertions(+)

@@ -1144,6 +1144,8 @@ 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;
 	}

Patches currently in stable-queue which might be from [email protected] are

queue-4.15/serial-core-mark-port-as-initialized-in-autoconfig.patch