mtd: physmap_of: use resource_size

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Gitweb:     http://git.infradead.org/?p=mtd-2.6.git;a=commit;h=2763c508a3c8f8ec5d6df4e8c63d5e2a5a7d3954
Commit:     2763c508a3c8f8ec5d6df4e8c63d5e2a5a7d3954
Parent:     44a1f2085e8fe07b3aecdab7c391ca057d75da0f
Author:     Wolfram Sang <w.sang at pengutronix.de>
AuthorDate: Fri Jul 17 17:54:14 2009 +0200
Committer:  David Woodhouse <David.Woodhouse at intel.com>
CommitDate: Fri Sep 4 09:37:18 2009 +0100

    mtd: physmap_of: use resource_size
    
    Signed-off-by: Wolfram Sang <w.sang at pengutronix.de>
    Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy at nokia.com>
    Signed-off-by: David Woodhouse <David.Woodhouse at intel.com>
---
 drivers/mtd/maps/physmap_of.c |    7 ++++---
 1 files changed, 4 insertions(+), 3 deletions(-)

diff --git a/drivers/mtd/maps/physmap_of.c b/drivers/mtd/maps/physmap_of.c
index 39d357b..f223f3f 100644
--- a/drivers/mtd/maps/physmap_of.c
+++ b/drivers/mtd/maps/physmap_of.c
@@ -190,6 +190,7 @@ static int __devinit of_flash_probe(struct of_device *dev,
 	const u32 *p;
 	int reg_tuple_size;
 	struct mtd_info **mtd_list = NULL;
+	resource_size_t res_size;
 
 	reg_tuple_size = (of_n_addr_cells(dp) + of_n_size_cells(dp)) * sizeof(u32);
 
@@ -233,8 +234,8 @@ static int __devinit of_flash_probe(struct of_device *dev,
 			(unsigned long long)res.end);
 
 		err = -EBUSY;
-		info->list[i].res = request_mem_region(res.start, res.end -
-						       res.start + 1,
+		res_size = resource_size(&res);
+		info->list[i].res = request_mem_region(res.start, res_size,
 						       dev_name(&dev->dev));
 		if (!info->list[i].res)
 			goto err_out;
@@ -249,7 +250,7 @@ static int __devinit of_flash_probe(struct of_device *dev,
 
 		info->list[i].map.name = dev_name(&dev->dev);
 		info->list[i].map.phys = res.start;
-		info->list[i].map.size = res.end - res.start + 1;
+		info->list[i].map.size = res_size;
 		info->list[i].map.bankwidth = *width;
 
 		err = -ENOMEM;