From: Vineet Gupta <Vineet.Gupta1@synopsys.com>
Date: Fri, 11 Jan 2013 06:20:20 +0000 (+0530)
Subject: serial/arc-uart: Don't index with -ve platform_device->id
X-Git-Tag: v3.9-rc1~125^2~120
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=026bb292c4018dd77186dee1fcb73c9067e69b89;p=pandora-kernel.git

serial/arc-uart: Don't index with -ve platform_device->id

probe routine could index into port[] with -ve index. The check in
arc_uart_init_one() was too late.

This came to light when trying to port driver to CONFIG_OF, where
bydefault of-core code sets -ve platform dev id and in absence of
DT serial aliases, driver would use the -ve index.

Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Cc: Alan Cox <alan@linux.intel.com>
Cc: Jiri Slaby <jslaby@suse.cz>
Cc: linux-serial@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

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