iio: adc: ti-ads1015: use devm_iio_triggered_buffer_setup

Use devm_iio_triggered_buffer_setup to simplify the error path in the
probe() and remove() function.

This changes the remove order, but the end result of remove function
actually does the reverse of probe.

Cc: Daniel Baluta <daniel.baluta@gmail.com>
Cc: Jonathan Cameron <jic23@kernel.org>
Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

diff --git a/drivers/iio/adc/ti-ads1015.c b/drivers/iio/adc/ti-ads1015.c
index 92451faeb21437613a0f220f05758f655c79e4be..8602b642a42fc1269eb13b3a2a198d94d7ea7c67 100644 (file)
--- a/drivers/iio/adc/ti-ads1015.c
+++ b/drivers/iio/adc/ti-ads1015.c
@@ -627,9 +627,9 @@ static int ads1015_probe(struct i2c_client *client,
                return PTR_ERR(data->regmap);
        }
 
-       ret = iio_triggered_buffer_setup(indio_dev, NULL,
-                                        ads1015_trigger_handler,
-                                        &ads1015_buffer_setup_ops);
+       ret = devm_iio_triggered_buffer_setup(&client->dev, indio_dev, NULL,
+                                             ads1015_trigger_handler,
+                                             &ads1015_buffer_setup_ops);
        if (ret < 0) {
                dev_err(&client->dev, "iio triggered buffer setup failed\n");
                return ret;
@@ -643,7 +643,7 @@ static int ads1015_probe(struct i2c_client *client,
 
        ret = pm_runtime_set_active(&client->dev);
        if (ret)
-               goto err_buffer_cleanup;
+               return ret;
        pm_runtime_set_autosuspend_delay(&client->dev, ADS1015_SLEEP_DELAY_MS);
        pm_runtime_use_autosuspend(&client->dev);
        pm_runtime_enable(&client->dev);
@@ -651,15 +651,10 @@ static int ads1015_probe(struct i2c_client *client,
        ret = iio_device_register(indio_dev);
        if (ret < 0) {
                dev_err(&client->dev, "Failed to register IIO device\n");
-               goto err_buffer_cleanup;
+               return ret;
        }
 
        return 0;
-
-err_buffer_cleanup:
-       iio_triggered_buffer_cleanup(indio_dev);
-
-       return ret;
 }
 
 static int ads1015_remove(struct i2c_client *client)
@@ -673,8 +668,6 @@ static int ads1015_remove(struct i2c_client *client)
        pm_runtime_set_suspended(&client->dev);
        pm_runtime_put_noidle(&client->dev);
 
-       iio_triggered_buffer_cleanup(indio_dev);
-
        /* power down single shot mode */
        return ads1015_set_conv_mode(data, ADS1015_SINGLESHOT);
 }