diff options
| -rw-r--r-- | drivers/rtc/rtc-ep93xx.c | 71 |
1 files changed, 28 insertions, 43 deletions
diff --git a/drivers/rtc/rtc-ep93xx.c b/drivers/rtc/rtc-ep93xx.c index 9da02d108b73..91bde976bc0f 100644 --- a/drivers/rtc/rtc-ep93xx.c +++ b/drivers/rtc/rtc-ep93xx.c @@ -115,6 +115,15 @@ static ssize_t ep93xx_rtc_show_comp_delete(struct device *dev, } static DEVICE_ATTR(comp_delete, S_IRUGO, ep93xx_rtc_show_comp_delete, NULL); +static struct attribute *ep93xx_rtc_attrs[] = { + &dev_attr_comp_preload.attr, + &dev_attr_comp_delete.attr, + NULL +}; + +static const struct attribute_group ep93xx_rtc_sysfs_files = { + .attrs = ep93xx_rtc_attrs, +}; static int __init ep93xx_rtc_probe(struct platform_device *pdev) { @@ -123,27 +132,22 @@ static int __init ep93xx_rtc_probe(struct platform_device *pdev) struct rtc_device *rtc; int err; - ep93xx_rtc = kzalloc(sizeof(struct ep93xx_rtc), GFP_KERNEL); - if (ep93xx_rtc == NULL) + ep93xx_rtc = devm_kzalloc(&pdev->dev, sizeof(*ep93xx_rtc), GFP_KERNEL); + if (!ep93xx_rtc) return -ENOMEM; res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - if (res == NULL) { - err = -ENXIO; - goto fail_free; - } + if (!res) + return -ENXIO; - res = request_mem_region(res->start, resource_size(res), pdev->name); - if (res == NULL) { - err = -EBUSY; - goto fail_free; - } + if (!devm_request_mem_region(&pdev->dev, res->start, + resource_size(res), pdev->name)) + return -EBUSY; - ep93xx_rtc->mmio_base = ioremap(res->start, resource_size(res)); - if (ep93xx_rtc->mmio_base == NULL) { - err = -ENXIO; - goto fail; - } + ep93xx_rtc->mmio_base = devm_ioremap(&pdev->dev, res->start, + resource_size(res)); + if (!ep93xx_rtc->mmio_base) + return -ENXIO; pdev->dev.platform_data = ep93xx_rtc; @@ -151,53 +155,34 @@ static int __init ep93xx_rtc_probe(struct platform_device *pdev) &pdev->dev, &ep93xx_rtc_ops, THIS_MODULE); if (IS_ERR(rtc)) { err = PTR_ERR(rtc); - goto fail; + goto exit; } platform_set_drvdata(pdev, rtc); - err = device_create_file(&pdev->dev, &dev_attr_comp_preload); + err = sysfs_create_group(&pdev->dev.kobj, &ep93xx_rtc_sysfs_files); if (err) goto fail; - err = device_create_file(&pdev->dev, &dev_attr_comp_delete); - if (err) { - device_remove_file(&pdev->dev, &dev_attr_comp_preload); - goto fail; - } return 0; fail: - if (ep93xx_rtc->mmio_base) { - iounmap(ep93xx_rtc->mmio_base); - pdev->dev.platform_data = NULL; - } - release_mem_region(res->start, resource_size(res)); -fail_free: - kfree(ep93xx_rtc); + platform_set_drvdata(pdev, NULL); + rtc_device_unregister(rtc); +exit: + pdev->dev.platform_data = NULL; return err; } static int __exit ep93xx_rtc_remove(struct platform_device *pdev) { struct rtc_device *rtc = platform_get_drvdata(pdev); - struct ep93xx_rtc *ep93xx_rtc = pdev->dev.platform_data; - struct resource *res; - - /* cleanup sysfs */ - device_remove_file(&pdev->dev, &dev_attr_comp_delete); - device_remove_file(&pdev->dev, &dev_attr_comp_preload); + sysfs_remove_group(&pdev->dev.kobj, &ep93xx_rtc_sysfs_files); + platform_set_drvdata(pdev, NULL); rtc_device_unregister(rtc); - - iounmap(ep93xx_rtc->mmio_base); pdev->dev.platform_data = NULL; - res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - release_mem_region(res->start, resource_size(res)); - - platform_set_drvdata(pdev, NULL); - return 0; } |