3 files changed, 5 insertions, 5 deletions
diff --git a/drivers/iio/magnetometer/st_magn_buffer.c b/drivers/iio/magnetometer/st_magn_buffer.c
index 11d7806655bc..9dba93539a99 100644
--- a/drivers/iio/magnetometer/st_magn_buffer.c
+++ b/drivers/iio/magnetometer/st_magn_buffer.c
@@ -34,7 +34,8 @@ static int st_magn_buffer_postenable(struct iio_dev *indio_dev)
 	int err;
 	struct st_sensor_data *mdata = iio_priv(indio_dev);
 
-	mdata->buffer_data = kmalloc(indio_dev->scan_bytes, GFP_KERNEL);
+	mdata->buffer_data = kmalloc(indio_dev->scan_bytes,
+				     GFP_DMA | GFP_KERNEL);
 	if (mdata->buffer_data == NULL) {
 		err = -ENOMEM;
 		goto allocate_memory_error;
diff --git a/drivers/iio/magnetometer/st_magn_core.c b/drivers/iio/magnetometer/st_magn_core.c
index 3f313aefece6..804353a483c7 100644
--- a/drivers/iio/magnetometer/st_magn_core.c
+++ b/drivers/iio/magnetometer/st_magn_core.c
@@ -12,7 +12,6 @@
 #include <linux/slab.h>
 #include <linux/errno.h>
 #include <linux/types.h>
-#include <linux/mutex.h>
 #include <linux/interrupt.h>
 #include <linux/i2c.h>
 #include <linux/gpio.h>
@@ -496,7 +495,6 @@ int st_magn_common_probe(struct iio_dev *indio_dev)
 
 	indio_dev->modes = INDIO_DIRECT_MODE;
 	indio_dev->info = &magn_info;
-	mutex_init(&mdata->tb.buf_lock);
 
 	err = st_sensors_power_enable(indio_dev);
 	if (err)
@@ -507,7 +505,6 @@ int st_magn_common_probe(struct iio_dev *indio_dev)
 		goto st_magn_power_off;
 
 	mdata->num_data_channels = ST_MAGN_NUMBER_DATA_CHANNELS;
-	mdata->multiread_bit = mdata->sensor_settings->multi_read_bit;
 	indio_dev->channels = mdata->sensor_settings->ch;
 	indio_dev->num_channels = ST_SENSORS_NUMBER_ALL_CHANNELS;
 
diff --git a/drivers/iio/magnetometer/st_magn_i2c.c b/drivers/iio/magnetometer/st_magn_i2c.c
index d5d565639bed..fdba480a12be 100644
--- a/drivers/iio/magnetometer/st_magn_i2c.c
+++ b/drivers/iio/magnetometer/st_magn_i2c.c
@@ -79,7 +79,9 @@ static int st_magn_i2c_probe(struct i2c_client *client,
 	mdata = iio_priv(indio_dev);
 	mdata->sensor_settings = (struct st_sensor_settings *)settings;
 
-	st_sensors_i2c_configure(indio_dev, client, mdata);
+	err = st_sensors_i2c_configure(indio_dev, client);
+	if (err < 0)
+		return err;
 
 	err = st_magn_common_probe(indio_dev);
 	if (err < 0)