rtc: rtc-m48t86: use devm_rtc_device_register()

devm_rtc_device_register() is device managed and makes 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-m48t86.c b/drivers/rtc/rtc-m48t86.c
index 2ffbcacd243917c7f879cfa4c8555cef3892a77d..33a91c4845335e37af3d3c8d093926851930d21c 100644 (file)
--- a/drivers/rtc/rtc-m48t86.c
+++ b/drivers/rtc/rtc-m48t86.c
@@ -148,8 +148,10 @@ static int m48t86_rtc_probe(struct platform_device *dev)
 {
        unsigned char reg;
        struct m48t86_ops *ops = dev->dev.platform_data;
-       struct rtc_device *rtc = rtc_device_register("m48t86",
-                               &dev->dev, &m48t86_rtc_ops, THIS_MODULE);
+       struct rtc_device *rtc;
+
+       rtc = devm_rtc_device_register(&dev->dev, "m48t86",
+                               &m48t86_rtc_ops, THIS_MODULE);
 
        if (IS_ERR(rtc))
                return PTR_ERR(rtc);
@@ -166,11 +168,6 @@ static int m48t86_rtc_probe(struct platform_device *dev)
 
 static int m48t86_rtc_remove(struct platform_device *dev)
 {
-       struct rtc_device *rtc = platform_get_drvdata(dev);
-
-       if (rtc)
-               rtc_device_unregister(rtc);
-
        platform_set_drvdata(dev, NULL);
 
        return 0;