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rtc: rtc-ds2404: use devm_*() functions

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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>
This commit is contained in:
Jingoo Han 2013-04-29 16:20:40 -07:00 committed by Linus Torvalds
parent 1ce95ba744
commit 2a444cf77c
1 changed files with 3 additions and 9 deletions
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12
drivers/rtc/rtc-ds2404.c
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@ -228,7 +228,7 @@ static int rtc_probe(struct platform_device *pdev)
struct ds2404 *chip;
int retval = -EBUSY;
chip = kzalloc(sizeof(struct ds2404), GFP_KERNEL);
chip = devm_kzalloc(&pdev->dev, sizeof(struct ds2404), GFP_KERNEL);
if (!chip)
return -ENOMEM;
@ -244,8 +244,8 @@ static int rtc_probe(struct platform_device *pdev)
platform_set_drvdata(pdev, chip);
chip->rtc = rtc_device_register("ds2404",
&pdev->dev, &ds2404_rtc_ops, THIS_MODULE);
chip->rtc = devm_rtc_device_register(&pdev->dev, "ds2404",
&ds2404_rtc_ops, THIS_MODULE);
if (IS_ERR(chip->rtc)) {
retval = PTR_ERR(chip->rtc);
goto err_io;
@ -257,20 +257,14 @@ 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 ds2404 *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;
}