staging: iio: ade7759: Use devm_iio_device_alloc

devm_iio_device_alloc makes code simpler.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Cc: Barry Song <21cnbao@gmail.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>

diff --git a/drivers/staging/iio/meter/ade7759.c b/drivers/staging/iio/meter/ade7759.c
index c1a3a5dfb71d1f83019f190ee5b0c3c796598a99..145f896aae2b4c38d3663809863f0ff9db2652b6 100644 (file)
--- a/drivers/staging/iio/meter/ade7759.c
+++ b/drivers/staging/iio/meter/ade7759.c
@@ -444,11 +444,9 @@ static int ade7759_probe(struct spi_device *spi)
        struct iio_dev *indio_dev;
 
        /* setup the industrialio driver allocated elements */
-       indio_dev = iio_device_alloc(sizeof(*st));
-       if (indio_dev == NULL) {
-               ret = -ENOMEM;
-               goto error_ret;
-       }
+       indio_dev = devm_iio_device_alloc(&spi->dev, sizeof(*st));
+       if (!indio_dev)
+               return -ENOMEM;
        /* this is only used for removal purposes */
        spi_set_drvdata(spi, indio_dev);
 
@@ -463,18 +461,13 @@ static int ade7759_probe(struct spi_device *spi)
        /* Get the device into a sane initial state */
        ret = ade7759_initial_setup(indio_dev);
        if (ret)
-               goto error_free_dev;
+               return ret;
 
        ret = iio_device_register(indio_dev);
        if (ret)
-               goto error_free_dev;
+               return ret;
 
        return 0;
-
-error_free_dev:
-       iio_device_free(indio_dev);
-error_ret:
-       return ret;
 }
 
 /* fixme, confirm ordering in this function */
@@ -484,7 +477,6 @@ static int ade7759_remove(struct spi_device *spi)
 
        iio_device_unregister(indio_dev);
        ade7759_stop_device(&indio_dev->dev);
-       iio_device_free(indio_dev);
 
        return 0;
 }