diff options
| -rw-r--r-- | drivers/rtc/rtc-nuc900.c | 53 |
1 files changed, 11 insertions, 42 deletions
diff --git a/drivers/rtc/rtc-nuc900.c b/drivers/rtc/rtc-nuc900.c index 4d9525cc1cf4..f5dfb6e5e7d9 100644 --- a/drivers/rtc/rtc-nuc900.c +++ b/drivers/rtc/rtc-nuc900.c @@ -226,9 +226,9 @@ static int __init nuc900_rtc_probe(struct platform_device *pdev) { struct resource *res; struct nuc900_rtc *nuc900_rtc; - int err = 0; - nuc900_rtc = kzalloc(sizeof(struct nuc900_rtc), GFP_KERNEL); + nuc900_rtc = devm_kzalloc(&pdev->dev, sizeof(struct nuc900_rtc), + GFP_KERNEL); if (!nuc900_rtc) { dev_err(&pdev->dev, "kzalloc nuc900_rtc failed\n"); return -ENOMEM; @@ -236,68 +236,37 @@ static int __init nuc900_rtc_probe(struct platform_device *pdev) res = platform_get_resource(pdev, IORESOURCE_MEM, 0); if (!res) { dev_err(&pdev->dev, "platform_get_resource failed\n"); - err = -ENXIO; - goto fail1; + return -ENXIO; } - if (!request_mem_region(res->start, resource_size(res), - pdev->name)) { - dev_err(&pdev->dev, "request_mem_region failed\n"); - err = -EBUSY; - goto fail1; - } - - nuc900_rtc->rtc_reg = ioremap(res->start, resource_size(res)); - if (!nuc900_rtc->rtc_reg) { - dev_err(&pdev->dev, "ioremap rtc_reg failed\n"); - err = -ENOMEM; - goto fail2; - } + nuc900_rtc->rtc_reg = devm_ioremap_resource(&pdev->dev, res); + if (IS_ERR(nuc900_rtc->rtc_reg)) + return PTR_ERR(nuc900_rtc->rtc_reg); platform_set_drvdata(pdev, nuc900_rtc); - nuc900_rtc->rtcdev = rtc_device_register(pdev->name, &pdev->dev, + nuc900_rtc->rtcdev = devm_rtc_device_register(&pdev->dev, pdev->name, &nuc900_rtc_ops, THIS_MODULE); if (IS_ERR(nuc900_rtc->rtcdev)) { dev_err(&pdev->dev, "rtc device register failed\n"); - err = PTR_ERR(nuc900_rtc->rtcdev); - goto fail3; + return PTR_ERR(nuc900_rtc->rtcdev); } __raw_writel(__raw_readl(nuc900_rtc->rtc_reg + REG_RTC_TSSR) | MODE24, nuc900_rtc->rtc_reg + REG_RTC_TSSR); nuc900_rtc->irq_num = platform_get_irq(pdev, 0); - if (request_irq(nuc900_rtc->irq_num, nuc900_rtc_interrupt, - 0, "nuc900rtc", nuc900_rtc)) { + if (devm_request_irq(&pdev->dev, nuc900_rtc->irq_num, + nuc900_rtc_interrupt, 0, "nuc900rtc", nuc900_rtc)) { dev_err(&pdev->dev, "NUC900 RTC request irq failed\n"); - err = -EBUSY; - goto fail4; + return -EBUSY; } return 0; - -fail4: rtc_device_unregister(nuc900_rtc->rtcdev); -fail3: iounmap(nuc900_rtc->rtc_reg); -fail2: release_mem_region(res->start, resource_size(res)); -fail1: kfree(nuc900_rtc); - return err; } static int __exit nuc900_rtc_remove(struct platform_device *pdev) { - struct nuc900_rtc *nuc900_rtc = platform_get_drvdata(pdev); - struct resource *res; - - free_irq(nuc900_rtc->irq_num, nuc900_rtc); - rtc_device_unregister(nuc900_rtc->rtcdev); - iounmap(nuc900_rtc->rtc_reg); - - res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - release_mem_region(res->start, resource_size(res)); - - kfree(nuc900_rtc); - platform_set_drvdata(pdev, NULL); return 0; |