This change makes the use of devm_iio_kfifo_allocate() to attach the life-cycle of the kfifo buffer to the parent (client->dev) object.
This removes the need to explicitly free 'indio_dev->buffer' via iio_kfifo_free(), which is the main intent. Signed-off-by: Alexandru Ardelean <[email protected]> --- drivers/staging/iio/impedance-analyzer/ad5933.c | 10 ++++------ 1 file changed, 4 insertions(+), 6 deletions(-) diff --git a/drivers/staging/iio/impedance-analyzer/ad5933.c b/drivers/staging/iio/impedance-analyzer/ad5933.c index af0bcf95ee8a..633adf1a08c1 100644 --- a/drivers/staging/iio/impedance-analyzer/ad5933.c +++ b/drivers/staging/iio/impedance-analyzer/ad5933.c @@ -602,11 +602,12 @@ static const struct iio_buffer_setup_ops ad5933_ring_setup_ops = { .postdisable = ad5933_ring_postdisable, }; -static int ad5933_register_ring_funcs_and_init(struct iio_dev *indio_dev) +static int ad5933_register_ring_funcs_and_init(struct device *dev, + struct iio_dev *indio_dev) { struct iio_buffer *buffer; - buffer = iio_kfifo_allocate(); + buffer = devm_iio_kfifo_allocate(dev); if (!buffer) return -ENOMEM; @@ -742,7 +743,7 @@ static int ad5933_probe(struct i2c_client *client, indio_dev->channels = ad5933_channels; indio_dev->num_channels = ARRAY_SIZE(ad5933_channels); - ret = ad5933_register_ring_funcs_and_init(indio_dev); + ret = ad5933_register_ring_funcs_and_init(&client->dev, indio_dev); if (ret) goto error_disable_mclk; @@ -756,8 +757,6 @@ static int ad5933_probe(struct i2c_client *client, return 0; -error_unreg_ring: - iio_kfifo_free(indio_dev->buffer); error_disable_mclk: clk_disable_unprepare(st->mclk); error_disable_reg: @@ -772,7 +771,6 @@ static int ad5933_remove(struct i2c_client *client) struct ad5933_state *st = iio_priv(indio_dev); iio_device_unregister(indio_dev); - iio_kfifo_free(indio_dev->buffer); regulator_disable(st->reg); clk_disable_unprepare(st->mclk); -- 2.17.1
