From 500689eff402f957f55481166e09b79a9dd8b41d Mon Sep 17 00:00:00 2001
From: Roel Kluin <roel.kluin@gmail.com>
Date: Thu, 28 May 2009 14:34:29 -0700
Subject: [PATCH] drivers/serial/mpc52xx_uart.c: fix array overindexing check

commit b898f4f869da5b9d41f297fff87aca4cd42d80b3 upstream.

The check for an overindexing of mpc52xx_uart_{ports,nodes} has an
off-by-one.

Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Acked-by: Wolfram Sang <w.sang@pengutronix.de>
Acked-by: Grant Likely <grant.likely@secretlab.ca>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---
 drivers/serial/mpc52xx_uart.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/serial/mpc52xx_uart.c b/drivers/serial/mpc52xx_uart.c
index 28d2c8d3771f..28b07ce41347 100644
--- a/drivers/serial/mpc52xx_uart.c
+++ b/drivers/serial/mpc52xx_uart.c
@@ -988,7 +988,7 @@ mpc52xx_console_setup(struct console *co, char *options)
 	pr_debug("mpc52xx_console_setup co=%p, co->index=%i, options=%s\n",
 		 co, co->index, options);
 
-	if ((co->index < 0) || (co->index > MPC52xx_PSC_MAXNUM)) {
+	if ((co->index < 0) || (co->index >= MPC52xx_PSC_MAXNUM)) {
 		pr_debug("PSC%x out of range\n", co->index);
 		return -EINVAL;
 	}
-- 
2.39.5