diff options
| -rw-r--r-- | drivers/rtc/rtc-ds1742.c | 18 |
1 files changed, 6 insertions, 12 deletions
diff --git a/drivers/rtc/rtc-ds1742.c b/drivers/rtc/rtc-ds1742.c index eccdc62ae1c0..9fba0ae2e768 100644 --- a/drivers/rtc/rtc-ds1742.c +++ b/drivers/rtc/rtc-ds1742.c @@ -56,7 +56,6 @@ struct rtc_plat_data { void __iomem *ioaddr_nvram; void __iomem *ioaddr_rtc; size_t size_nvram; - size_t size; unsigned long last_jiffies; struct bin_attribute nvram_attr; }; @@ -168,22 +167,17 @@ static int ds1742_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; - pdata->size = resource_size(res); - if (!devm_request_mem_region(&pdev->dev, res->start, pdata->size, - pdev->name)) - return -EBUSY; - ioaddr = devm_ioremap(&pdev->dev, res->start, pdata->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_nvram = ioaddr; - pdata->size_nvram = pdata->size - RTC_SIZE; + pdata->size_nvram = resource_size(res) - RTC_SIZE; pdata->ioaddr_rtc = ioaddr + pdata->size_nvram; sysfs_bin_attr_init(&pdata->nvram_attr); |