1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/watchdog/davinci_wdt.c b/drivers/watchdog/davinci_wdt.c
index 9d7520fa9e9c..887136de1857 100644
--- a/drivers/watchdog/davinci_wdt.c
+++ b/drivers/watchdog/davinci_wdt.c
@@ -221,7 +221,7 @@ static int __devinit davinci_wdt_probe(struct platform_device *pdev)
                 return -ENOENT;
         }
 
-        size = res->end - res->start + 1;
+        size = resource_size(res);
         wdt_mem = request_mem_region(res->start, size, pdev->name);
 
         if (wdt_mem == NULL) {