rtc-vr41xx: use resource_size()

Signed-off-by: Yoichi Yuasa <yuasa@linux-mips.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 2 insertions, 2 deletions

diff --git a/drivers/rtc/rtc-vr41xx.c b/drivers/rtc/rtc-vr41xx.c
index fadddac1e5a4..c3244244e8cf 100644
--- a/drivers/rtc/rtc-vr41xx.c
+++ b/drivers/rtc/rtc-vr41xx.c
@@ -327,7 +327,7 @@ static int __devinit rtc_probe(struct platform_device *pdev)
         if (!res)
                 return -EBUSY;
 
-        rtc1_base = ioremap(res->start, res->end - res->start + 1);
+        rtc1_base = ioremap(res->start, resource_size(res));
         if (!rtc1_base)
                 return -EBUSY;
 
@@ -337,7 +337,7 @@ static int __devinit rtc_probe(struct platform_device *pdev)
                 goto err_rtc1_iounmap;
         }
 
-        rtc2_base = ioremap(res->start, res->end - res->start + 1);
+        rtc2_base = ioremap(res->start, resource_size(res));
         if (!rtc2_base) {
                 retval = -EBUSY;
                 goto err_rtc1_iounmap;