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Subject[PATCH 23/27] rtc: rtc-rs5c372: use devm_*() functions
Date
Use devm_*() functions to make cleanup paths simpler.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
---
drivers/rtc/rtc-rs5c372.c | 30 +++++++++++-------------------
1 files changed, 11 insertions(+), 19 deletions(-)

diff --git a/drivers/rtc/rtc-rs5c372.c b/drivers/rtc/rtc-rs5c372.c
index 581739f..224d634 100644
--- a/drivers/rtc/rtc-rs5c372.c
+++ b/drivers/rtc/rtc-rs5c372.c
@@ -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;
}

--
1.7.2.5



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