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path: root/drivers/rtc/rtc-ds1553.c
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Diffstat (limited to 'drivers/rtc/rtc-ds1553.c')
-rw-r--r--drivers/rtc/rtc-ds1553.c13
1 files changed, 4 insertions, 9 deletions
diff --git a/drivers/rtc/rtc-ds1553.c b/drivers/rtc/rtc-ds1553.c
index 8c6c952e90b1..fd31571941f5 100644
--- a/drivers/rtc/rtc-ds1553.c
+++ b/drivers/rtc/rtc-ds1553.c
@@ -285,19 +285,14 @@ static int ds1553_rtc_probe(struct platform_device *pdev)
void __iomem *ioaddr;
int ret = 0;
- res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- if (!res)
- return -ENODEV;
pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL);
if (!pdata)
return -ENOMEM;
- if (!devm_request_mem_region(&pdev->dev, res->start, RTC_REG_SIZE,
- pdev->name))
- return -EBUSY;
- ioaddr = devm_ioremap(&pdev->dev, res->start, RTC_REG_SIZE);
- if (!ioaddr)
- return -ENOMEM;
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ ioaddr = devm_ioremap_resource(&pdev->dev, res);
+ if (IS_ERR(ioaddr))
+ return PTR_ERR(ioaddr);
pdata->ioaddr = ioaddr;
pdata->irq = platform_get_irq(pdev, 0);