drivers/rtc/rtc-ds3232.c: use devm_* APIs
devm_* functions are device managed and make cleanup code simpler.
Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Cc: Srikanth Srinivasan <srikanth.srinivasan@freescale.com>
Cc: 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-ds3232.c b/drivers/rtc/rtc-ds3232.c
index db0ca08..b83bb5a5 100644
--- a/drivers/rtc/rtc-ds3232.c
+++ b/drivers/rtc/rtc-ds3232.c
@@ -397,7 +397,7 @@
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 @@
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 @@
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;
}