rtc: rtc-ab8500: 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-ab8500.c b/drivers/rtc/rtc-ab8500.c
index 57cde2b061e6b9878c5ccf8052719d5e801b02ab..63cfa314a39f2b2be6e5307b219be24aed926d3b 100644 (file)
--- a/drivers/rtc/rtc-ab8500.c
+++ b/drivers/rtc/rtc-ab8500.c
@@ -422,20 +422,19 @@ static int ab8500_rtc_probe(struct platform_device *pdev)
 
        device_init_wakeup(&pdev->dev, true);
 
-       rtc = rtc_device_register("ab8500-rtc", &pdev->dev, &ab8500_rtc_ops,
-                       THIS_MODULE);
+       rtc = devm_rtc_device_register(&pdev->dev, "ab8500-rtc",
+                                       &ab8500_rtc_ops, THIS_MODULE);
        if (IS_ERR(rtc)) {
                dev_err(&pdev->dev, "Registration failed\n");
                err = PTR_ERR(rtc);
                return err;
        }
 
-       err = request_threaded_irq(irq, NULL, rtc_alarm_handler,
-               IRQF_NO_SUSPEND | IRQF_ONESHOT, "ab8500-rtc", rtc);
-       if (err < 0) {
-               rtc_device_unregister(rtc);
+       err = devm_request_threaded_irq(&pdev->dev, irq, NULL,
+                       rtc_alarm_handler, IRQF_NO_SUSPEND | IRQF_ONESHOT,
+                       "ab8500-rtc", rtc);
+       if (err < 0)
                return err;
-       }
 
        platform_set_drvdata(pdev, rtc);
 
@@ -450,13 +449,8 @@ static int ab8500_rtc_probe(struct platform_device *pdev)
 
 static int ab8500_rtc_remove(struct platform_device *pdev)
 {
-       struct rtc_device *rtc = platform_get_drvdata(pdev);
-       int irq = platform_get_irq_byname(pdev, "ALARM");
-
        ab8500_sysfs_rtc_unregister(&pdev->dev);
 
-       free_irq(irq, rtc);
-       rtc_device_unregister(rtc);
        platform_set_drvdata(pdev, NULL);
 
        return 0;