linux-kernel - [patch] comedi: off by one issue

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Message-ID: <20100328114834.GT5069@bicker>
Date:	Sun, 28 Mar 2010 14:48:34 +0300
From:	Dan Carpenter <error27@...il.com>
To:	Greg Kroah-Hartman <gregkh@...e.de>
Cc:	Bill Pemberton <wfp5p@...ginia.edu>,
	Andrea Gelmini <andrea.gelmini@...ma.net>,
	Mithlesh Thukral <mithlesh@...syssoft.com>,
	devel@...verdev.osuosl.org, linux-kernel@...r.kernel.org,
	kernel-janitors@...r.kernel.org
Subject: [patch] comedi: off by one issue

"dac_range_table" has 5 elements.

Signed-off-by: Dan Carpenter <error27@...il.com>

diff --git a/drivers/staging/comedi/drivers/dt2801.c b/drivers/staging/comedi/drivers/dt2801.c
index 3f365ae..83fb6e5 100644
--- a/drivers/staging/comedi/drivers/dt2801.c
+++ b/drivers/staging/comedi/drivers/dt2801.c
@@ -472,7 +472,7 @@ static const struct comedi_lrange *dac_range_table[] = {
 
 static const struct comedi_lrange *dac_range_lkup(int opt)
 {
-	if (opt < 0 || opt > 5)
+	if (opt < 0 || opt >= 5)
 		return &range_unknown;
 	return dac_range_table[opt];
 }
--
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