mtd: nomadik_nand.c: use resource_size()

Use resource_size().

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
diff --git a/drivers/mtd/nand/nomadik_nand.c b/drivers/mtd/nand/nomadik_nand.c
index 6612341..59cbf66 100644
--- a/drivers/mtd/nand/nomadik_nand.c
+++ b/drivers/mtd/nand/nomadik_nand.c
@@ -104,21 +104,21 @@
 		ret = -EIO;
 		goto err_unmap;
 	}
-	host->addr_va = ioremap(res->start, res->end - res->start + 1);
+	host->addr_va = ioremap(res->start, resource_size(res));
 
 	res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "nand_data");
 	if (!res) {
 		ret = -EIO;
 		goto err_unmap;
 	}
-	host->data_va = ioremap(res->start, res->end - res->start + 1);
+	host->data_va = ioremap(res->start, resource_size(res));
 
 	res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "nand_cmd");
 	if (!res) {
 		ret = -EIO;
 		goto err_unmap;
 	}
-	host->cmd_va = ioremap(res->start, res->end - res->start + 1);
+	host->cmd_va = ioremap(res->start, resource_size(res));
 
 	if (!host->addr_va || !host->data_va || !host->cmd_va) {
 		ret = -ENOMEM;