linux-kernel - [PATCH 2/2] video: sh7760fb: use resource

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Message-ID: <1296293745.13797.4.camel@phoenix>
Date:	Sat, 29 Jan 2011 17:35:45 +0800
From:	Axel Lin <axel.lin@...il.com>
To:	linux-kernel@...r.kernel.org
Cc:	Manuel Lauss <mano@...rinelk.homelinux.net>,
	Nobuhiro Iwamatsu <iwamatsu.nobuhiro@...esas.com>,
	Paul Mundt <lethal@...ux-sh.org>, linux-fbdev@...r.kernel.org
Subject: [PATCH 2/2] video: sh7760fb: use resource_size()

The size calculation is done incorrectly in request_mem_region because
it should include both the start and end (end - start + 1).

Signed-off-by: Axel Lin <axel.lin@...il.com>
---
 drivers/video/sh7760fb.c |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/video/sh7760fb.c b/drivers/video/sh7760fb.c
index bea38fc..8fe1958 100644
--- a/drivers/video/sh7760fb.c
+++ b/drivers/video/sh7760fb.c
@@ -459,14 +459,14 @@ static int __devinit sh7760fb_probe(struct platform_device *pdev)
 	}
 
 	par->ioarea = request_mem_region(res->start,
-					 (res->end - res->start), pdev->name);
+					 resource_size(res), pdev->name);
 	if (!par->ioarea) {
 		dev_err(&pdev->dev, "mmio area busy\n");
 		ret = -EBUSY;
 		goto out_fb;
 	}
 
-	par->base = ioremap_nocache(res->start, res->end - res->start + 1);
+	par->base = ioremap_nocache(res->start, resource_size(res));
 	if (!par->base) {
 		dev_err(&pdev->dev, "cannot remap\n");
 		ret = -ENODEV;
-- 
1.7.0.4



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