From: Henrik Nordström <henrik@henriknordstrom.net>
Date: Tue, 23 Jul 2013 19:06:07 +0000 (+0200)
Subject: tty/8250_early: Don't truncate last character of options
X-Git-Tag: v3.11-rc3~10^2~1
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=258a9fd17b92552637bc74776c11737e0472dc86;p=pandora-kernel.git

tty/8250_early: Don't truncate last character of options

The earlier change to use strlcpy uncovered a bug in the options
argument length calculation causing last character to be truncated.
This makes the actual console to be configured with incorrect
baudrate when specifying the console using console=uart,... syntax.

Bug symptom seen in kernel log output:

Kernel command line: console=uart,mmio,0x90000000,115200
Early serial console at MMIO 0x90000000 (options '11520')

which then results in a invalid baud rate 11520 instead of the
expected 115200 when the console is switched to ttyS0 later
in the boot process.

Signed-off-by: Henrik Nordstrom <henrik@henriknordstrom.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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