[MTD] [NAND] pxa3xx_nand: use resource_size instead of 'r->end - r->start + 1'

Signed-off-by: Mike Rapoport <mike@compulab.co.il>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>

1 files changed, 3 insertions, 3 deletions

diff --git a/drivers/mtd/nand/pxa3xx_nand.c b/drivers/mtd/nand/pxa3xx_nand.c
index cc55cbc2b308..ffa960baa7e7 100644
--- a/drivers/mtd/nand/pxa3xx_nand.c
+++ b/drivers/mtd/nand/pxa3xx_nand.c
@@ -1118,14 +1118,14 @@ static int pxa3xx_nand_probe(struct platform_device *pdev)
                 goto fail_put_clk;
         }
 
-        r = request_mem_region(r->start, r->end - r->start + 1, pdev->name);
+        r = request_mem_region(r->start, resource_size(r), pdev->name);
         if (r == NULL) {
                 dev_err(&pdev->dev, "failed to request memory resource\n");
                 ret = -EBUSY;
                 goto fail_put_clk;
         }
 
-        info->mmio_base = ioremap(r->start, r->end - r->start + 1);
+        info->mmio_base = ioremap(r->start, resource_size(r));
         if (info->mmio_base == NULL) {
                 dev_err(&pdev->dev, "ioremap() failed\n");
                 ret = -ENODEV;
@@ -1174,7 +1174,7 @@ fail_free_buf:
 fail_free_io:
         iounmap(info->mmio_base);
 fail_free_res:
-        release_mem_region(r->start, r->end - r->start + 1);
+        release_mem_region(r->start, resource_size(r));
 fail_put_clk:
         clk_disable(info->clk);
         clk_put(info->clk);