linux-kernel - [PATCH 23/25] serial: bfin_sport_uart: Use resource size to fix off-by-one error

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Message-Id: <1274460714-11277-23-git-send-email-gregkh@suse.de>
Date:	Fri, 21 May 2010 09:51:52 -0700
From:	Greg Kroah-Hartman <gregkh@...e.de>
To:	linux-kernel@...r.kernel.org
Cc:	Tobias Klauser <tklauser@...tanz.ch>,
	Mike Frysinger <vapier@...too.org>,
	Greg Kroah-Hartman <gregkh@...e.de>
Subject: [PATCH 23/25] serial: bfin_sport_uart: Use resource size to fix off-by-one error

From: Tobias Klauser <tklauser@...tanz.ch>

Use the resource_size function instead of manually calculating the
resource size. This actually fixes an off-by-one error.

Signed-off-by: Tobias Klauser <tklauser@...tanz.ch>
Signed-off-by: Mike Frysinger <vapier@...too.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@...e.de>
---
 drivers/serial/bfin_sport_uart.c |    3 +--
 1 files changed, 1 insertions(+), 2 deletions(-)

diff --git a/drivers/serial/bfin_sport_uart.c b/drivers/serial/bfin_sport_uart.c
index 66cda22..e57fb3d 100644
--- a/drivers/serial/bfin_sport_uart.c
+++ b/drivers/serial/bfin_sport_uart.c
@@ -774,8 +774,7 @@ static int __devinit sport_uart_probe(struct platform_device *pdev)
 			goto out_error_free_peripherals;
 		}
 
-		sport->port.membase = ioremap(res->start,
-			res->end - res->start);
+		sport->port.membase = ioremap(res->start, resource_size(res));
 		if (!sport->port.membase) {
 			dev_err(&pdev->dev, "Cannot map sport IO\n");
 			ret = -ENXIO;
-- 
1.7.0.3

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