iio: common: ssp_sensors: account for const type of of_device_id.data

This driver creates a number of const structures that it stores in the
data field of an of_device_id array.

Add const to the declaration of the location that receives a value
from the data field to ensure that the compiler will continue to check
that the value is not modified and remove the const-dropping cast on
the access to the data field.

Done using Coccinelle.

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/iio/common/ssp_sensors/ssp.h b/drivers/iio/common/ssp_sensors/ssp.h
index b910e91d7c0d3edc703e26146c014cd69ddd7284..82a01addd91997974a46c06b15b19aa49ae85d5c 100644 (file)
--- a/drivers/iio/common/ssp_sensors/ssp.h
+++ b/drivers/iio/common/ssp_sensors/ssp.h
@@ -188,7 +188,7 @@ struct ssp_sensorhub_info {
  */
 struct ssp_data {
        struct spi_device *spi;
-       struct ssp_sensorhub_info *sensorhub_info;
+       const struct ssp_sensorhub_info *sensorhub_info;
        struct timer_list wdt_timer;
        struct work_struct work_wdt;
        struct delayed_work work_refresh;

diff --git a/drivers/iio/common/ssp_sensors/ssp_dev.c b/drivers/iio/common/ssp_sensors/ssp_dev.c
index 2ba2ff5e59c47c125af52e86c32badba3d633249..af3aa38f67cda7683b30c2cd82d0b90d28cc1f8d 100644 (file)
--- a/drivers/iio/common/ssp_sensors/ssp_dev.c
+++ b/drivers/iio/common/ssp_sensors/ssp_dev.c
@@ -486,7 +486,7 @@ static struct ssp_data *ssp_parse_dt(struct device *dev)
        if (!match)
                goto err_mcu_reset_gpio;
 
-       data->sensorhub_info = (struct ssp_sensorhub_info *)match->data;
+       data->sensorhub_info = match->data;
 
        dev_set_drvdata(dev, data);