s3c2410_wdt.c: use resource_size()

[H Hartley Sweeten]

Use resource_size().

Signed-off-by: H Hartley Sweeten <hsweeten@xxxxxxxxxxxxxxxxxxx>
Cc: Wim Van Sebroeck <wim@xxxxxxxxx>
Cc: Vincent Sanders <support@xxxxxxxxxxxx>

---

diff --git a/drivers/watchdog/s3c2410_wdt.c b/drivers/watchdog/s3c2410_wdt.c
index b57ac6b..1639e0e 100644
--- a/drivers/watchdog/s3c2410_wdt.c
+++ b/drivers/watchdog/s3c2410_wdt.c
@@ -348,7 +348,7 @@ static int __devinit s3c2410wdt_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) {
 		dev_err(dev, "failed to get memory region\n"); 
--
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