rtc: rtc-sa1100: 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>

1 files changed, 5 insertions, 12 deletions

diff --git a/drivers/rtc/rtc-sa1100.c b/drivers/rtc/rtc-sa1100.c
index 7e0a0887c256..00605601dbf7 100644
--- a/drivers/rtc/rtc-sa1100.c
+++ b/drivers/rtc/rtc-sa1100.c
@@ -234,14 +234,13 @@ static int sa1100_rtc_probe(struct platform_device *pdev)
         if (irq_1hz < 0 || irq_alarm < 0)
                 return -ENODEV;
 
-        info = kzalloc(sizeof(struct sa1100_rtc), GFP_KERNEL);
+        info = devm_kzalloc(&pdev->dev, sizeof(struct sa1100_rtc), GFP_KERNEL);
         if (!info)
                 return -ENOMEM;
-        info->clk = clk_get(&pdev->dev, NULL);
+        info->clk = devm_clk_get(&pdev->dev, NULL);
         if (IS_ERR(info->clk)) {
                 dev_err(&pdev->dev, "failed to find rtc clock source\n");
-                ret = PTR_ERR(info->clk);
-                goto err_clk;
+                return PTR_ERR(info->clk);
         }
         info->irq_1hz = irq_1hz;
         info->irq_alarm = irq_alarm;
@@ -268,8 +267,8 @@ static int sa1100_rtc_probe(struct platform_device *pdev)
 
         device_init_wakeup(&pdev->dev, 1);
 
-        rtc = rtc_device_register(pdev->name, &pdev->dev, &sa1100_rtc_ops,
-                THIS_MODULE);
+        rtc = devm_rtc_device_register(&pdev->dev, pdev->name, &sa1100_rtc_ops,
+                                        THIS_MODULE);
 
         if (IS_ERR(rtc)) {
                 ret = PTR_ERR(rtc);
@@ -306,9 +305,6 @@ err_dev:
         clk_disable_unprepare(info->clk);
 err_enable_clk:
         platform_set_drvdata(pdev, NULL);
-        clk_put(info->clk);
-err_clk:
-        kfree(info);
         return ret;
 }
 
@@ -317,11 +313,8 @@ static int sa1100_rtc_remove(struct platform_device *pdev)
         struct sa1100_rtc *info = platform_get_drvdata(pdev);
 
         if (info) {
-                rtc_device_unregister(info->rtc);
                 clk_disable_unprepare(info->clk);
-                clk_put(info->clk);
                 platform_set_drvdata(pdev, NULL);
-                kfree(info);
         }
 
         return 0;