From 25c5feef23b699c83b9131223b4a726b501f3d25 Mon Sep 17 00:00:00 2001
From: Johan Hovold <johan@kernel.org>
Date: Tue, 18 Nov 2014 11:25:19 +0100
Subject: [PATCH] USB: keyspan: fix tty line-status reporting

commit 5d1678a33c731b56e245e888fdae5e88efce0997 upstream.

Fix handling of TTY error flags, which are not bitmasks and must
specifically not be ORed together as this prevents the line discipline
from recognising them.

Also insert null characters when reporting overrun errors as these are
not associated with the received character.

Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Signed-off-by: Johan Hovold <johan@kernel.org>
[bwh: Backported to 3.2:
 - s/\&port->port/tty/
 - Adjust context, indentation]
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---
Reading git-format-patch failed