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>

1 files changed, 7 insertions, 22 deletions

diff --git a/drivers/rtc/rtc-isl12022.c b/drivers/rtc/rtc-isl12022.c
index 6b4298ea683d..1af0aa5cbd27 100644
--- 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;
 }