1 files changed, 1 insertions, 3 deletions

diff --git a/drivers/rtc/rtc-m48t59.c b/drivers/rtc/rtc-m48t59.c
index 013e6c103b9c..e085ab2c3dbe 100644
--- a/drivers/rtc/rtc-m48t59.c
+++ b/drivers/rtc/rtc-m48t59.c
@@ -34,7 +34,6 @@
 
 struct m48t59_private {
         void __iomem *ioaddr;
-        unsigned int size; /* iomem size */
         int irq;
         struct rtc_device *rtc;
         spinlock_t lock; /* serialize the NVRAM and RTC access */
@@ -403,8 +402,7 @@ static int __devinit m48t59_rtc_probe(struct platform_device *pdev)
         if (!m48t59)
                 return -ENOMEM;
 
-        m48t59->size = res->end - res->start + 1;
-        m48t59->ioaddr = ioremap(res->start, m48t59->size);
+        m48t59->ioaddr = ioremap(res->start, res->end - res->start + 1);
         if (!m48t59->ioaddr)
                 goto out;