1 files changed, 4 insertions, 5 deletions

diff --git a/drivers/watchdog/omap_wdt.c b/drivers/watchdog/omap_wdt.c
index 429ea99eaee5..c6aaf2845741 100644
--- a/drivers/watchdog/omap_wdt.c
+++ b/drivers/watchdog/omap_wdt.c
@@ -277,8 +277,7 @@ static int __devinit omap_wdt_probe(struct platform_device *pdev)
                 goto err_busy;
         }
 
-        mem = request_mem_region(res->start, res->end - res->start + 1,
-                                 pdev->name);
+        mem = request_mem_region(res->start, resource_size(res), pdev->name);
         if (!mem) {
                 ret = -EBUSY;
                 goto err_busy;
@@ -306,7 +305,7 @@ static int __devinit omap_wdt_probe(struct platform_device *pdev)
                 goto err_clk;
         }
 
-        wdev->base = ioremap(res->start, res->end - res->start + 1);
+        wdev->base = ioremap(res->start, resource_size(res));
         if (!wdev->base) {
                 ret = -ENOMEM;
                 goto err_ioremap;
@@ -358,7 +357,7 @@ err_clk:
         kfree(wdev);
 
 err_kzalloc:
-        release_mem_region(res->start, res->end - res->start + 1);
+        release_mem_region(res->start, resource_size(res));
 
 err_busy:
 err_get_resource:
@@ -383,7 +382,7 @@ static int __devexit omap_wdt_remove(struct platform_device *pdev)
                 return -ENOENT;
 
         misc_deregister(&(wdev->omap_wdt_miscdev));
-        release_mem_region(res->start, res->end - res->start + 1);
+        release_mem_region(res->start, resource_size(res));
         platform_set_drvdata(pdev, NULL);
 
         clk_put(wdev->ick);