3 files changed, 8 insertions, 7 deletions

diff --git a/drivers/mtd/maps/bfin-async-flash.c b/drivers/mtd/maps/bfin-async-flash.c
index d4297a97e100..67815eed2f00 100644
--- a/drivers/mtd/maps/bfin-async-flash.c
+++ b/drivers/mtd/maps/bfin-async-flash.c
@@ -142,7 +142,7 @@ static int __devinit bfin_flash_probe(struct platform_device *pdev)
         state->map.write      = bfin_flash_write;
         state->map.copy_to    = bfin_flash_copy_to;
         state->map.bankwidth  = pdata->width;
-        state->map.size       = memory->end - memory->start + 1;
+        state->map.size       = resource_size(memory);
         state->map.virt       = (void __iomem *)memory->start;
         state->map.phys       = memory->start;
         state->map.map_priv_1 = (unsigned long)state;
diff --git a/drivers/mtd/maps/ixp2000.c b/drivers/mtd/maps/ixp2000.c
index c00b9175ba9e..1594a802631d 100644
--- a/drivers/mtd/maps/ixp2000.c
+++ b/drivers/mtd/maps/ixp2000.c
@@ -155,7 +155,7 @@ static int ixp2000_flash_probe(struct platform_device *dev)
         if (!plat)
                 return -ENODEV;
 
-        window_size = dev->resource->end - dev->resource->start + 1;
+        window_size = resource_size(dev->resource);
         dev_info(&dev->dev, "Probe of IXP2000 flash(%d banks x %dMiB)\n",
                  ixp_data->nr_banks, ((u32)window_size >> 20));
 
@@ -194,16 +194,17 @@ static int ixp2000_flash_probe(struct platform_device *dev)
         info->map.copy_to = ixp2000_flash_copy_to;
 
         info->res = request_mem_region(dev->resource->start,
-                        dev->resource->end - dev->resource->start + 1,
-                        dev_name(&dev->dev));
+                                       resource_size(dev->resource),
+                                       dev_name(&dev->dev));
         if (!info->res) {
                 dev_err(&dev->dev, "Could not reserve memory region\n");
                 err = -ENOMEM;
                 goto Error;
         }
 
-        info->map.map_priv_1 = (unsigned long) ioremap(dev->resource->start,
-                                dev->resource->end - dev->resource->start + 1);
+        info->map.map_priv_1 =
+                (unsigned long)ioremap(dev->resource->start,
+                                       resource_size(dev->resource));
         if (!info->map.map_priv_1) {
                 dev_err(&dev->dev, "Failed to ioremap flash region\n");
                 err = -EIO;
diff --git a/drivers/mtd/maps/pxa2xx-flash.c b/drivers/mtd/maps/pxa2xx-flash.c
index f59d62f74d44..7ae137d4b998 100644
--- a/drivers/mtd/maps/pxa2xx-flash.c
+++ b/drivers/mtd/maps/pxa2xx-flash.c
@@ -70,7 +70,7 @@ static int __devinit pxa2xx_flash_probe(struct platform_device *pdev)
         info->map.name = (char *) flash->name;
         info->map.bankwidth = flash->width;
         info->map.phys = res->start;
-        info->map.size = res->end - res->start + 1;
+        info->map.size = resource_size(res);
         info->parts = flash->parts;
         info->nr_parts = flash->nr_parts;