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 <alexandru.ardelean@xxxxxxxxxx>
---
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
