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drivers/rtc/rtc-tegra.c: use managed rtc_device_register()

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Use devm_rtc_device_register() for registering RTC device.  This will
reduce the code for unregistering RTC device in cleanup path and remove
the implementation of remove callback of platform driver.

Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Reviewed-by: Thierry Reding <thierry.reding@avionic-design.de>
Reviewed-by: Stephen Warren <swarren@nvidia.com>
Cc: 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:
Laxman Dewangan 2013-04-29 16:19:25 -07:00 committed by Linus Torvalds
parent 57bff981f7
commit 68567112ee
1 changed files with 5 additions and 23 deletions
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28
drivers/rtc/rtc-tegra.c
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@ -349,13 +349,12 @@ static int __init tegra_rtc_probe(struct platform_device *pdev)
device_init_wakeup(&pdev->dev, 1);
info->rtc_dev = rtc_device_register(
pdev->name, &pdev->dev, &tegra_rtc_ops, THIS_MODULE);
info->rtc_dev = devm_rtc_device_register(&pdev->dev,
dev_name(&pdev->dev), &tegra_rtc_ops,
THIS_MODULE);
if (IS_ERR(info->rtc_dev)) {
ret = PTR_ERR(info->rtc_dev);
info->rtc_dev = NULL;
dev_err(&pdev->dev,
"Unable to register device (err=%d).\n",
dev_err(&pdev->dev, "Unable to register device (err=%d).\n",
ret);
return ret;
}
@ -367,27 +366,11 @@ static int __init tegra_rtc_probe(struct platform_device *pdev)
dev_err(&pdev->dev,
"Unable to request interrupt for device (err=%d).\n",
ret);
goto err_dev_unreg;
return ret;
}
dev_notice(&pdev->dev, "Tegra internal Real Time Clock\n");
return 0;
err_dev_unreg:
rtc_device_unregister(info->rtc_dev);
return ret;
}
static int __exit tegra_rtc_remove(struct platform_device *pdev)
{
struct tegra_rtc_info *info = platform_get_drvdata(pdev);
rtc_device_unregister(info->rtc_dev);
platform_set_drvdata(pdev, NULL);
return 0;
}
@ -440,7 +423,6 @@ static void tegra_rtc_shutdown(struct platform_device *pdev)
MODULE_ALIAS("platform:tegra_rtc");
static struct platform_driver tegra_rtc_driver = {
.remove = __exit_p(tegra_rtc_remove),
.shutdown = tegra_rtc_shutdown,
.driver = {
.name = "tegra_rtc",