iio: light: tsl2563: Use devm_* APIs

devm_* APIs are device managed and make code simpler.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Reviewed-by: Amit Kucheria <amit.kucheria@linaro.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>

drivers/iio/light/tsl2563.c

@@ -702,7 +702,7 @@ static int tsl2563_probe(struct i2c_client *client,
 	int err = 0;
 	u8 id = 0;
 
-	indio_dev = iio_device_alloc(sizeof(*chip));
+	indio_dev = devm_iio_device_alloc(&client->dev, sizeof(*chip));
 	if (!indio_dev)
 		return -ENOMEM;
 
@@ -714,13 +714,13 @@ static int tsl2563_probe(struct i2c_client *client,
 	err = tsl2563_detect(chip);
 	if (err) {
 		dev_err(&client->dev, "detect error %d\n", -err);
-		goto fail1;
+		return err;
 	}
 
 	err = tsl2563_read_id(chip, &id);
 	if (err) {
 		dev_err(&client->dev, "read id error %d\n", -err);
-		goto fail1;
+		return err;
 	}
 
 	mutex_init(&chip->lock);
@@ -751,7 +751,7 @@ static int tsl2563_probe(struct i2c_client *client,
 		indio_dev->info = &tsl2563_info_no_irq;
 
 	if (client->irq) {
-		err = request_threaded_irq(client->irq,
+		err = devm_request_threaded_irq(&client->dev, client->irq,
 					   NULL,
 					   &tsl2563_event_handler,
 					   IRQF_TRIGGER_RISING | IRQF_ONESHOT,
@@ -759,14 +759,14 @@ static int tsl2563_probe(struct i2c_client *client,
 					   indio_dev);
 		if (err) {
 			dev_err(&client->dev, "irq request error %d\n", -err);
-			goto fail1;
+			return err;
 		}
 	}
 
 	err = tsl2563_configure(chip);
 	if (err) {
 		dev_err(&client->dev, "configure error %d\n", -err);
-		goto fail2;
+		return err;
 	}
 
 	INIT_DELAYED_WORK(&chip->poweroff_work, tsl2563_poweroff_work);
@@ -777,19 +777,14 @@ static int tsl2563_probe(struct i2c_client *client,
 	err = iio_device_register(indio_dev);
 	if (err) {
 		dev_err(&client->dev, "iio registration error %d\n", -err);
-		goto fail3;
+		goto fail;
 	}
 
 	return 0;
 
-fail3:
+fail:
 	cancel_delayed_work(&chip->poweroff_work);
 	flush_scheduled_work();
-fail2:
-	if (client->irq)
-		free_irq(client->irq, indio_dev);
-fail1:
-	iio_device_free(indio_dev);
 	return err;
 }
 
@@ -807,10 +802,6 @@ static int tsl2563_remove(struct i2c_client *client)
 				  chip->intr);
 	flush_scheduled_work();
 	tsl2563_set_power(chip, 0);
-	if (client->irq)
-		free_irq(client->irq, indio_dev);
-
-	iio_device_free(indio_dev);
 
 	return 0;
 }