iio: magnetometer: hid-sensor-magn-3d: Use devm_iio_device_alloc

Using devm_iio_device_alloc makes code simpler.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Cc: Srinivas Pandruvada <srinivas.pandruvada@intel.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>

diff --git a/drivers/iio/magnetometer/hid-sensor-magn-3d.c b/drivers/iio/magnetometer/hid-sensor-magn-3d.c
index e71127a..5a6162d 100644 (file)
--- a/drivers/iio/magnetometer/hid-sensor-magn-3d.c
+++ b/drivers/iio/magnetometer/hid-sensor-magn-3d.c
@@ -283,11 +283,11 @@ static int hid_magn_3d_probe(struct platform_device *pdev)
        struct hid_sensor_hub_device *hsdev = pdev->dev.platform_data;
        struct iio_chan_spec *channels;
 
-       indio_dev = iio_device_alloc(sizeof(struct magn_3d_state));
-       if (indio_dev == NULL) {
-               ret = -ENOMEM;
-               goto error_ret;
-       }
+       indio_dev = devm_iio_device_alloc(&pdev->dev,
+                                         sizeof(struct magn_3d_state));
+       if (indio_dev == NULL)
+               return -ENOMEM;
+
        platform_set_drvdata(pdev, indio_dev);
 
        magn_state = iio_priv(indio_dev);
@@ -299,15 +299,14 @@ static int hid_magn_3d_probe(struct platform_device *pdev)
                                &magn_state->common_attributes);
        if (ret) {
                dev_err(&pdev->dev, "failed to setup common attributes\n");
-               goto error_free_dev;
+               return ret;
        }
 
        channels = kmemdup(magn_3d_channels, sizeof(magn_3d_channels),
                           GFP_KERNEL);
        if (!channels) {
-               ret = -ENOMEM;
                dev_err(&pdev->dev, "failed to duplicate channels\n");
-               goto error_free_dev;
+               return -ENOMEM;
        }
 
        ret = magn_3d_parse_report(pdev, hsdev, channels,
@@ -364,9 +363,6 @@ error_unreg_buffer_funcs:
        iio_triggered_buffer_cleanup(indio_dev);
 error_free_dev_mem:
        kfree(indio_dev->channels);
-error_free_dev:
-       iio_device_free(indio_dev);
-error_ret:
        return ret;
 }
 
@@ -381,7 +377,6 @@ static int hid_magn_3d_remove(struct platform_device *pdev)
        hid_sensor_remove_trigger(indio_dev);
        iio_triggered_buffer_cleanup(indio_dev);
        kfree(indio_dev->channels);
-       iio_device_free(indio_dev);
 
        return 0;
 }