linux-kernel - [patch] hdpuftrs: use resource

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Message-ID: <20100322120959.GH21571@bicker>
Date:	Mon, 22 Mar 2010 15:09:59 +0300
From:	Dan Carpenter <error27@...il.com>
To:	linux-kernel@...r.kernel.org
Cc:	kernel-janitors@...r.kernel.org
Subject: [patch] hdpuftrs: use resource_size()

The size caculation is wrong.  It should be end - start + 1.
Use resource_size() to calculate it correctly.

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

diff --git a/drivers/misc/hdpuftrs/hdpu_nexus.c b/drivers/misc/hdpuftrs/hdpu_nexus.c
index ce39fa5..bce5029 100644
--- a/drivers/misc/hdpuftrs/hdpu_nexus.c
+++ b/drivers/misc/hdpuftrs/hdpu_nexus.c
@@ -92,8 +92,7 @@ static int hdpu_nexus_probe(struct platform_device *pdev)
 		       "Invalid memory resource.\n");
 		return -EINVAL;
 	}
-	nexus_id_addr = ioremap(res->start,
-				(unsigned long)(res->end - res->start));
+	nexus_id_addr = ioremap(res->start, resource_size(res));
 	if (nexus_id_addr) {
 		slot_id = (*nexus_id_addr >> 8) & 0x1f;
 		chassis_id = *nexus_id_addr & 0xff;
--
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