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drivers/rtc/rtc-ds3232.c: use devm_* APIs

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devm_* functions are device managed and make cleanup code simpler.

Signed-off-by: Sachin Kamat <[email protected]>
Cc: Srikanth Srinivasan <[email protected]>
Cc: Jingoo Han <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
This commit is contained in:
Sachin Kamat 2013-04-29 16:20:31 -07:00 • committed by Linus Torvalds
commit 6671461278
1 changed files with 7 additions and 18 deletions
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25
drivers/rtc/rtc-ds3232.c
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@ -397,7 +397,7 @@ static int ds3232_probe(struct i2c_client *client,
struct ds3232 *ds3232;
int ret;
ds3232 = kzalloc(sizeof(struct ds3232), GFP_KERNEL);
ds3232 = devm_kzalloc(&client->dev, sizeof(struct ds3232), GFP_KERNEL);
if (!ds3232)
return -ENOMEM;
@ -409,34 +409,25 @@ static int ds3232_probe(struct i2c_client *client,
ret = ds3232_check_rtc_status(client);
if (ret)
goto out_free;
return ret;
ds3232->rtc = rtc_device_register(client->name, &client->dev,
ds3232->rtc = devm_rtc_device_register(&client->dev, client->name,
&ds3232_rtc_ops, THIS_MODULE);
if (IS_ERR(ds3232->rtc)) {
ret = PTR_ERR(ds3232->rtc);
dev_err(&client->dev, "unable to register the class device\n");
goto out_irq;
return PTR_ERR(ds3232->rtc);
}
if (client->irq >= 0) {
ret = request_irq(client->irq, ds3232_irq, 0,
ret = devm_request_irq(&client->dev, client->irq, ds3232_irq, 0,
"ds3232", client);
if (ret) {
dev_err(&client->dev, "unable to request IRQ\n");
goto out_free;
return ret;
}
}
return 0;
out_irq:
if (client->irq >= 0)
free_irq(client->irq, client);
out_free:
kfree(ds3232);
return ret;
}
static int ds3232_remove(struct i2c_client *client)
@ -448,12 +439,10 @@ static int ds3232_remove(struct i2c_client *client)
ds3232->exiting = 1;
mutex_unlock(&ds3232->mutex);
free_irq(client->irq, client);
devm_free_irq(&client->dev, client->irq, client);
cancel_work_sync(&ds3232->work);
}
rtc_device_unregister(ds3232->rtc);
kfree(ds3232);
return 0;
}