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rtc: rtc-rs5c372: use devm_*() functions

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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>
This commit is contained in:
Jingoo Han 2013-04-29 16:20:52 -07:00 committed by Linus Torvalds
parent 8fb1ecb36f
commit b8a4b4e2f7
1 changed files with 11 additions and 19 deletions
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30
drivers/rtc/rtc-rs5c372.c
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@ -579,7 +579,9 @@ static int rs5c372_probe(struct i2c_client *client,
}
}
if (!(rs5c372 = kzalloc(sizeof(struct rs5c372), GFP_KERNEL))) {
rs5c372 = devm_kzalloc(&client->dev, sizeof(struct rs5c372),
GFP_KERNEL);
if (!rs5c372) {
err = -ENOMEM;
goto exit;
}
@ -594,7 +596,7 @@ static int rs5c372_probe(struct i2c_client *client,
err = rs5c_get_regs(rs5c372);
if (err < 0)
goto exit_kfree;
goto exit;
/* clock may be set for am/pm or 24 hr time */
switch (rs5c372->type) {
@ -617,7 +619,7 @@ static int rs5c372_probe(struct i2c_client *client,
break;
default:
dev_err(&client->dev, "unknown RTC type\n");
goto exit_kfree;
goto exit;
}
/* if the oscillator lost power and no other software (like
@ -629,7 +631,7 @@ static int rs5c372_probe(struct i2c_client *client,
err = rs5c_oscillator_setup(rs5c372);
if (unlikely(err < 0)) {
dev_err(&client->dev, "setup error\n");
goto exit_kfree;
goto exit;
}
if (rs5c372_get_datetime(client, &tm) < 0)
@ -648,38 +650,28 @@ static int rs5c372_probe(struct i2c_client *client,
);
/* REVISIT use client->irq to register alarm irq ... */
rs5c372->rtc = rtc_device_register(rs5c372_driver.driver.name,
&client->dev, &rs5c372_rtc_ops, THIS_MODULE);
rs5c372->rtc = devm_rtc_device_register(&client->dev,
rs5c372_driver.driver.name,
&rs5c372_rtc_ops, THIS_MODULE);
if (IS_ERR(rs5c372->rtc)) {
err = PTR_ERR(rs5c372->rtc);
goto exit_kfree;
goto exit;
}
err = rs5c_sysfs_register(&client->dev);
if (err)
goto exit_devreg;
goto exit;
return 0;
exit_devreg:
rtc_device_unregister(rs5c372->rtc);
exit_kfree:
kfree(rs5c372);
exit:
return err;
}
static int rs5c372_remove(struct i2c_client *client)
{
struct rs5c372 *rs5c372 = i2c_get_clientdata(client);
rtc_device_unregister(rs5c372->rtc);
rs5c_sysfs_unregister(&client->dev);
kfree(rs5c372);
return 0;
}