rtc: rtc-v3020: use devm_*() functions

Use devm_*() functions to make 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-v3020.c b/drivers/rtc/rtc-v3020.c
index bca5d677bc85385d31efcd5486a4f44ac08bed73..6e0cba8f47d5e70f61dc089d8ee127b49c8d8597 100644 (file)
--- a/drivers/rtc/rtc-v3020.c
+++ b/drivers/rtc/rtc-v3020.c
@@ -309,7 +309,7 @@ static int rtc_probe(struct platform_device *pdev)
        int i;
        int temp;
 
-       chip = kzalloc(sizeof *chip, GFP_KERNEL);
+       chip = devm_kzalloc(&pdev->dev, sizeof(*chip), GFP_KERNEL);
        if (!chip)
                return -ENOMEM;
 
@@ -353,8 +353,8 @@ static int rtc_probe(struct platform_device *pdev)
 
        platform_set_drvdata(pdev, chip);
 
-       chip->rtc = rtc_device_register("v3020",
-                               &pdev->dev, &v3020_rtc_ops, THIS_MODULE);
+       chip->rtc = devm_rtc_device_register(&pdev->dev, "v3020",
+                                       &v3020_rtc_ops, THIS_MODULE);
        if (IS_ERR(chip->rtc)) {
                retval = PTR_ERR(chip->rtc);
                goto err_io;
@@ -365,21 +365,14 @@ static int rtc_probe(struct platform_device *pdev)
 err_io:
        chip->ops->unmap_io(chip);
 err_chip:
-       kfree(chip);
-
        return retval;
 }
 
 static int rtc_remove(struct platform_device *dev)
 {
        struct v3020 *chip = platform_get_drvdata(dev);
-       struct rtc_device *rtc = chip->rtc;
-
-       if (rtc)
-               rtc_device_unregister(rtc);
 
        chip->ops->unmap_io(chip);
-       kfree(chip);
 
        return 0;
 }