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path: root/drivers/rtc/rtc-mrst.c
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Diffstat (limited to 'drivers/rtc/rtc-mrst.c')
-rw-r--r--drivers/rtc/rtc-mrst.c5
1 files changed, 2 insertions, 3 deletions
diff --git a/drivers/rtc/rtc-mrst.c b/drivers/rtc/rtc-mrst.c
index 0cec5650d56a..d33544802a2e 100644
--- a/drivers/rtc/rtc-mrst.c
+++ b/drivers/rtc/rtc-mrst.c
@@ -332,9 +332,8 @@ vrtc_mrst_do_probe(struct device *dev, struct resource *iomem, int rtc_irq)
if (!iomem)
return -ENODEV;
- iomem = request_mem_region(iomem->start,
- iomem->end + 1 - iomem->start,
- driver_name);
+ iomem = request_mem_region(iomem->start, resource_size(iomem),
+ driver_name);
if (!iomem) {
dev_dbg(dev, "i/o mem already in use.\n");
return -EBUSY;