rtc: rtc-max8998: 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-max8998.c b/drivers/rtc/rtc-max8998.c
index 8f234a075e8fe38f5e76ebf5d463089f1e479ff5..48b6612fae7fb59b13804972e2709884f79da92a 100644 (file)
--- a/drivers/rtc/rtc-max8998.c
+++ b/drivers/rtc/rtc-max8998.c
@@ -256,7 +256,8 @@ static int max8998_rtc_probe(struct platform_device *pdev)
        struct max8998_rtc_info *info;
        int ret;
 
-       info = kzalloc(sizeof(struct max8998_rtc_info), GFP_KERNEL);
+       info = devm_kzalloc(&pdev->dev, sizeof(struct max8998_rtc_info),
+                       GFP_KERNEL);
        if (!info)
                return -ENOMEM;
 
@@ -267,7 +268,7 @@ static int max8998_rtc_probe(struct platform_device *pdev)
 
        platform_set_drvdata(pdev, info);
 
-       info->rtc_dev = rtc_device_register("max8998-rtc", &pdev->dev,
+       info->rtc_dev = devm_rtc_device_register(&pdev->dev, "max8998-rtc",
                        &max8998_rtc_ops, THIS_MODULE);
 
        if (IS_ERR(info->rtc_dev)) {
@@ -276,8 +277,8 @@ static int max8998_rtc_probe(struct platform_device *pdev)
                goto out_rtc;
        }
 
-       ret = request_threaded_irq(info->irq, NULL, max8998_rtc_alarm_irq, 0,
-                       "rtc-alarm0", info);
+       ret = devm_request_threaded_irq(&pdev->dev, info->irq, NULL,
+                               max8998_rtc_alarm_irq, 0, "rtc-alarm0", info);
 
        if (ret < 0)
                dev_err(&pdev->dev, "Failed to request alarm IRQ: %d: %d\n",
@@ -294,20 +295,11 @@ static int max8998_rtc_probe(struct platform_device *pdev)
 
 out_rtc:
        platform_set_drvdata(pdev, NULL);
-       kfree(info);
        return ret;
 }
 
 static int max8998_rtc_remove(struct platform_device *pdev)
 {
-       struct max8998_rtc_info *info = platform_get_drvdata(pdev);
-
-       if (info) {
-               free_irq(info->irq, info);
-               rtc_device_unregister(info->rtc_dev);
-               kfree(info);
-       }
-
        return 0;
 }