rtc: rtc-m41t80: 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-m41t80.c b/drivers/rtc/rtc-m41t80.c
index b885bcd..89674b5 100644
--- a/drivers/rtc/rtc-m41t80.c
+++ b/drivers/rtc/rtc-m41t80.c
@@ -637,7 +637,8 @@
dev_info(&client->dev,
"chip found, driver version " DRV_VERSION "\n");
- clientdata = kzalloc(sizeof(*clientdata), GFP_KERNEL);
+ clientdata = devm_kzalloc(&client->dev, sizeof(*clientdata),
+ GFP_KERNEL);
if (!clientdata) {
rc = -ENOMEM;
goto exit;
@@ -646,8 +647,8 @@
clientdata->features = id->driver_data;
i2c_set_clientdata(client, clientdata);
- rtc = rtc_device_register(client->name, &client->dev,
- &m41t80_rtc_ops, THIS_MODULE);
+ rtc = devm_rtc_device_register(&client->dev, client->name,
+ &m41t80_rtc_ops, THIS_MODULE);
if (IS_ERR(rtc)) {
rc = PTR_ERR(rtc);
rtc = NULL;
@@ -718,26 +719,19 @@
goto exit;
exit:
- if (rtc)
- rtc_device_unregister(rtc);
- kfree(clientdata);
return rc;
}
static int m41t80_remove(struct i2c_client *client)
{
- struct m41t80_data *clientdata = i2c_get_clientdata(client);
- struct rtc_device *rtc = clientdata->rtc;
-
#ifdef CONFIG_RTC_DRV_M41T80_WDT
+ struct m41t80_data *clientdata = i2c_get_clientdata(client);
+
if (clientdata->features & M41T80_FEATURE_HT) {
misc_deregister(&wdt_dev);
unregister_reboot_notifier(&wdt_notifier);
}
#endif
- if (rtc)
- rtc_device_unregister(rtc);
- kfree(clientdata);
return 0;
}