rtc: rtc-isl12022: 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-isl12022.c b/drivers/rtc/rtc-isl12022.c
index 6b4298ea683d22de6435800be04316dcaa7655ff..1af0aa5cbd27e3a3a80049346285c24d91926100 100644 (file)
--- a/drivers/rtc/rtc-isl12022.c
+++ b/drivers/rtc/rtc-isl12022.c
@@ -252,12 +252,11 @@ static int isl12022_probe(struct i2c_client *client,
 {
        struct isl12022 *isl12022;
 
-       int ret = 0;
-
        if (!i2c_check_functionality(client->adapter, I2C_FUNC_I2C))
                return -ENODEV;
 
-       isl12022 = kzalloc(sizeof(struct isl12022), GFP_KERNEL);
+       isl12022 = devm_kzalloc(&client->dev, sizeof(struct isl12022),
+                               GFP_KERNEL);
        if (!isl12022)
                return -ENOMEM;
 
@@ -265,31 +264,17 @@ static int isl12022_probe(struct i2c_client *client,
 
        i2c_set_clientdata(client, isl12022);
 
-       isl12022->rtc = rtc_device_register(isl12022_driver.driver.name,
-                                           &client->dev,
-                                           &isl12022_rtc_ops,
-                                           THIS_MODULE);
-
-       if (IS_ERR(isl12022->rtc)) {
-               ret = PTR_ERR(isl12022->rtc);
-               goto exit_kfree;
-       }
+       isl12022->rtc = devm_rtc_device_register(&client->dev,
+                                       isl12022_driver.driver.name,
+                                       &isl12022_rtc_ops, THIS_MODULE);
+       if (IS_ERR(isl12022->rtc))
+               return PTR_ERR(isl12022->rtc);
 
        return 0;
-
-exit_kfree:
-       kfree(isl12022);
-
-       return ret;
 }
 
 static int isl12022_remove(struct i2c_client *client)
 {
-       struct isl12022 *isl12022 = i2c_get_clientdata(client);
-
-       rtc_device_unregister(isl12022->rtc);
-       kfree(isl12022);
-
        return 0;
 }