4 files changed, 4 insertions, 44 deletions

diff --git a/drivers/iio/accel/st_accel_buffer.c b/drivers/iio/accel/st_accel_buffer.c
index 59dcef02ec19..9f2b40474b8e 100644
--- a/drivers/iio/accel/st_accel_buffer.c
+++ b/drivers/iio/accel/st_accel_buffer.c
@@ -31,17 +31,11 @@ int st_accel_trig_set_state(struct iio_trigger *trig, bool state)
 
 static int st_accel_buffer_postenable(struct iio_dev *indio_dev)
 {
-	struct st_sensor_data *adata = iio_priv(indio_dev);
 	int err;
 
-	adata->buffer_data = kmalloc(indio_dev->scan_bytes,
-				     GFP_DMA | GFP_KERNEL);
-	if (!adata->buffer_data)
-		return -ENOMEM;
-
 	err = iio_triggered_buffer_postenable(indio_dev);
 	if (err < 0)
-		goto st_accel_free_buffer;
+		return err;
 
 	err = st_sensors_set_axis_enable(indio_dev,
 					 (u8)indio_dev->active_scan_mask[0]);
@@ -58,14 +52,11 @@ st_accel_buffer_enable_all_axis:
 	st_sensors_set_axis_enable(indio_dev, ST_SENSORS_ENABLE_ALL_AXIS);
 st_accel_buffer_predisable:
 	iio_triggered_buffer_predisable(indio_dev);
-st_accel_free_buffer:
-	kfree(adata->buffer_data);
 	return err;
 }
 
 static int st_accel_buffer_predisable(struct iio_dev *indio_dev)
 {
-	struct st_sensor_data *adata = iio_priv(indio_dev);
 	int err, err2;
 
 	err = st_sensors_set_enable(indio_dev, false);
@@ -79,7 +70,6 @@ st_accel_buffer_predisable:
 	if (!err)
 		err = err2;
 
-	kfree(adata->buffer_data);
 	return err;
 }
 
diff --git a/drivers/iio/gyro/st_gyro_buffer.c b/drivers/iio/gyro/st_gyro_buffer.c
index c6ddfecc1fc3..7465ad62391c 100644
--- a/drivers/iio/gyro/st_gyro_buffer.c
+++ b/drivers/iio/gyro/st_gyro_buffer.c
@@ -31,17 +31,11 @@ int st_gyro_trig_set_state(struct iio_trigger *trig, bool state)
 
 static int st_gyro_buffer_postenable(struct iio_dev *indio_dev)
 {
-	struct st_sensor_data *gdata = iio_priv(indio_dev);
 	int err;
 
-	gdata->buffer_data = kmalloc(indio_dev->scan_bytes,
-				     GFP_DMA | GFP_KERNEL);
-	if (!gdata->buffer_data)
-		return -ENOMEM;
-
 	err = iio_triggered_buffer_postenable(indio_dev);
 	if (err < 0)
-		goto st_gyro_free_buffer;
+		return err;
 
 	err = st_sensors_set_axis_enable(indio_dev,
 					 (u8)indio_dev->active_scan_mask[0]);
@@ -58,15 +52,12 @@ st_gyro_buffer_enable_all_axis:
 	st_sensors_set_axis_enable(indio_dev, ST_SENSORS_ENABLE_ALL_AXIS);
 st_gyro_buffer_predisable:
 	iio_triggered_buffer_predisable(indio_dev);
-st_gyro_free_buffer:
-	kfree(gdata->buffer_data);
 	return err;
 }
 
 static int st_gyro_buffer_predisable(struct iio_dev *indio_dev)
 {
 	int err, err2;
-	struct st_sensor_data *gdata = iio_priv(indio_dev);
 
 	err = st_sensors_set_enable(indio_dev, false);
 	if (err < 0)
@@ -79,7 +70,6 @@ st_gyro_buffer_predisable:
 	if (!err)
 		err = err2;
 
-	kfree(gdata->buffer_data);
 	return err;
 }
 
diff --git a/drivers/iio/magnetometer/st_magn_buffer.c b/drivers/iio/magnetometer/st_magn_buffer.c
index 658d627dad8e..bb425c167a96 100644
--- a/drivers/iio/magnetometer/st_magn_buffer.c
+++ b/drivers/iio/magnetometer/st_magn_buffer.c
@@ -31,17 +31,11 @@ int st_magn_trig_set_state(struct iio_trigger *trig, bool state)
 
 static int st_magn_buffer_postenable(struct iio_dev *indio_dev)
 {
-	struct st_sensor_data *mdata = iio_priv(indio_dev);
 	int err;
 
-	mdata->buffer_data = kmalloc(indio_dev->scan_bytes,
-				     GFP_DMA | GFP_KERNEL);
-	if (!mdata->buffer_data)
-		return -ENOMEM;
-
 	err = iio_triggered_buffer_postenable(indio_dev);
 	if (err < 0)
-		goto st_magn_free_buffer;
+		return err;
 
 	err = st_sensors_set_enable(indio_dev, true);
 	if (err < 0)
@@ -51,14 +45,11 @@ static int st_magn_buffer_postenable(struct iio_dev *indio_dev)
 
 st_magn_buffer_predisable:
 	iio_triggered_buffer_predisable(indio_dev);
-st_magn_free_buffer:
-	kfree(mdata->buffer_data);
 	return err;
 }
 
 static int st_magn_buffer_predisable(struct iio_dev *indio_dev)
 {
-	struct st_sensor_data *mdata = iio_priv(indio_dev);
 	int err, err2;
 
 	err = st_sensors_set_enable(indio_dev, false);
@@ -67,7 +58,6 @@ static int st_magn_buffer_predisable(struct iio_dev *indio_dev)
 	if (!err)
 		err = err2;
 
-	kfree(mdata->buffer_data);
 	return err;
 }
 
diff --git a/drivers/iio/pressure/st_pressure_buffer.c b/drivers/iio/pressure/st_pressure_buffer.c
index 77cb2d862f19..418dbf9e6e1e 100644
--- a/drivers/iio/pressure/st_pressure_buffer.c
+++ b/drivers/iio/pressure/st_pressure_buffer.c
@@ -31,17 +31,11 @@ int st_press_trig_set_state(struct iio_trigger *trig, bool state)
 
 static int st_press_buffer_postenable(struct iio_dev *indio_dev)
 {
-	struct st_sensor_data *press_data = iio_priv(indio_dev);
 	int err;
 
-	press_data->buffer_data = kmalloc(indio_dev->scan_bytes,
-					  GFP_DMA | GFP_KERNEL);
-	if (!press_data->buffer_data)
-		return -ENOMEM;
-
 	err = iio_triggered_buffer_postenable(indio_dev);
 	if (err < 0)
-		goto st_press_free_buffer;
+		return err;
 
 	err = st_sensors_set_enable(indio_dev, true);
 	if (err < 0)
@@ -51,14 +45,11 @@ static int st_press_buffer_postenable(struct iio_dev *indio_dev)
 
 st_press_buffer_predisable:
 	iio_triggered_buffer_predisable(indio_dev);
-st_press_free_buffer:
-	kfree(press_data->buffer_data);
 	return err;
 }
 
 static int st_press_buffer_predisable(struct iio_dev *indio_dev)
 {
-	struct st_sensor_data *press_data = iio_priv(indio_dev);
 	int err, err2;
 
 	err = st_sensors_set_enable(indio_dev, false);
@@ -67,7 +58,6 @@ static int st_press_buffer_predisable(struct iio_dev *indio_dev)
 	if (!err)
 		err = err2;
 
-	kfree(press_data->buffer_data);
 	return err;
 }