1 files changed, 2 insertions, 4 deletions

diff --git a/drivers/watchdog/txx9wdt.c b/drivers/watchdog/txx9wdt.c
index 6adab77fbbb0..d635566e9307 100644
--- a/drivers/watchdog/txx9wdt.c
+++ b/drivers/watchdog/txx9wdt.c
@@ -214,12 +214,10 @@ static int __init txx9wdt_probe(struct platform_device *dev)
         res = platform_get_resource(dev, IORESOURCE_MEM, 0);
         if (!res)
                 goto exit_busy;
-        if (!devm_request_mem_region(&dev->dev,
-                                     res->start, res->end - res->start + 1,
+        if (!devm_request_mem_region(&dev->dev, res->start, resource_size(res),
                                      "txx9wdt"))
                 goto exit_busy;
-        txx9wdt_reg = devm_ioremap(&dev->dev,
-                                   res->start, res->end - res->start + 1);
+        txx9wdt_reg = devm_ioremap(&dev->dev, res->start, resource_size(res));
         if (!txx9wdt_reg)
                 goto exit_busy;