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path: root/drivers/rtc/rtc-m48t59.c
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Diffstat (limited to 'drivers/rtc/rtc-m48t59.c')
-rw-r--r--drivers/rtc/rtc-m48t59.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/rtc/rtc-m48t59.c b/drivers/rtc/rtc-m48t59.c
index 3978f4caf724..28365388fb6c 100644
--- a/drivers/rtc/rtc-m48t59.c
+++ b/drivers/rtc/rtc-m48t59.c
@@ -433,7 +433,7 @@ static int __devinit m48t59_rtc_probe(struct platform_device *pdev)
if (!m48t59->ioaddr) {
/* ioaddr not mapped externally */
- m48t59->ioaddr = ioremap(res->start, res->end - res->start + 1);
+ m48t59->ioaddr = ioremap(res->start, resource_size(res));
if (!m48t59->ioaddr)
goto out;
}