rtc: rtc-ep93xx: use devm_rtc_device_register()

devm_rtc_device_register() is device managed and makes cleanup
paths simpler.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

diff --git a/drivers/rtc/rtc-ep93xx.c b/drivers/rtc/rtc-ep93xx.c
index 1a4e5e4a70cddcd4eba6fa9f304184a25532374a..5807b77c444a86df3790046ff158f2cb994af244 100644 (file)
--- a/drivers/rtc/rtc-ep93xx.c
+++ b/drivers/rtc/rtc-ep93xx.c
@@ -153,8 +153,8 @@ static int ep93xx_rtc_probe(struct platform_device *pdev)
        pdev->dev.platform_data = ep93xx_rtc;
        platform_set_drvdata(pdev, ep93xx_rtc);
 
-       ep93xx_rtc->rtc = rtc_device_register(pdev->name,
-                               &pdev->dev, &ep93xx_rtc_ops, THIS_MODULE);
+       ep93xx_rtc->rtc = devm_rtc_device_register(&pdev->dev,
+                               pdev->name, &ep93xx_rtc_ops, THIS_MODULE);
        if (IS_ERR(ep93xx_rtc->rtc)) {
                err = PTR_ERR(ep93xx_rtc->rtc);
                goto exit;
@@ -162,12 +162,10 @@ static int ep93xx_rtc_probe(struct platform_device *pdev)
 
        err = sysfs_create_group(&pdev->dev.kobj, &ep93xx_rtc_sysfs_files);
        if (err)
-               goto fail;
+               goto exit;
 
        return 0;
 
-fail:
-       rtc_device_unregister(ep93xx_rtc->rtc);
 exit:
        platform_set_drvdata(pdev, NULL);
        pdev->dev.platform_data = NULL;
@@ -176,11 +174,8 @@ exit:
 
 static int ep93xx_rtc_remove(struct platform_device *pdev)
 {
-       struct ep93xx_rtc *ep93xx_rtc = platform_get_drvdata(pdev);
-
        sysfs_remove_group(&pdev->dev.kobj, &ep93xx_rtc_sysfs_files);
        platform_set_drvdata(pdev, NULL);
-       rtc_device_unregister(ep93xx_rtc->rtc);
        pdev->dev.platform_data = NULL;
 
        return 0;