diff mbox series

[RFC,v4,10/12] media: imx219: use a local v4l2_subdev to simplify reading

Message ID 20220203175009.558868-11-jeanmichel.hautbois@ideasonboard.com (mailing list archive)
State New, archived
Headers show
Series Add support for BCM2835 camera interface (unicam) | expand

Commit Message

Jean-Michel Hautbois Feb. 3, 2022, 5:50 p.m. UTC
There is no need to dereference the imx219 structure. Use a local
v4l2_subdev instead.

Signed-off-by: Jean-Michel Hautbois <jeanmichel.hautbois@ideasonboard.com>
---
 drivers/media/i2c/imx219.c | 18 ++++++++++--------
 1 file changed, 10 insertions(+), 8 deletions(-)

Comments

Laurent Pinchart Feb. 4, 2022, 2:56 a.m. UTC | #1
Hi Jean-Michel,

Thank you for the patch.

On Thu, Feb 03, 2022 at 06:50:07PM +0100, Jean-Michel Hautbois wrote:
> There is no need to dereference the imx219 structure. Use a local
> v4l2_subdev instead.
> 
> Signed-off-by: Jean-Michel Hautbois <jeanmichel.hautbois@ideasonboard.com>

Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>

> ---
>  drivers/media/i2c/imx219.c | 18 ++++++++++--------
>  1 file changed, 10 insertions(+), 8 deletions(-)
> 
> diff --git a/drivers/media/i2c/imx219.c b/drivers/media/i2c/imx219.c
> index 7d29cf2b06f8..7c224d007f3e 100644
> --- a/drivers/media/i2c/imx219.c
> +++ b/drivers/media/i2c/imx219.c
> @@ -1492,6 +1492,7 @@ static int imx219_check_hwcfg(struct device *dev)
>  static int imx219_probe(struct i2c_client *client)
>  {
>  	struct device *dev = &client->dev;
> +	struct v4l2_subdev *sd;
>  	struct imx219 *imx219;
>  	int ret;
>  
> @@ -1499,7 +1500,8 @@ static int imx219_probe(struct i2c_client *client)
>  	if (!imx219)
>  		return -ENOMEM;
>  
> -	v4l2_i2c_subdev_init(&imx219->sd, client, &imx219_subdev_ops);
> +	sd = &imx219->sd;
> +	v4l2_i2c_subdev_init(sd, client, &imx219_subdev_ops);
>  
>  	/* Check the hardware configuration in device tree */
>  	if (imx219_check_hwcfg(dev))
> @@ -1566,21 +1568,21 @@ static int imx219_probe(struct i2c_client *client)
>  		goto error_power_off;
>  
>  	/* Initialize subdev */
> -	imx219->sd.flags |= V4L2_SUBDEV_FL_HAS_DEVNODE |
> -			    V4L2_SUBDEV_FL_HAS_EVENTS |
> -			    V4L2_SUBDEV_FL_MULTIPLEXED;
> -	imx219->sd.entity.function = MEDIA_ENT_F_CAM_SENSOR;
> +	sd->flags |= V4L2_SUBDEV_FL_HAS_DEVNODE |
> +		     V4L2_SUBDEV_FL_HAS_EVENTS |
> +		     V4L2_SUBDEV_FL_MULTIPLEXED;
> +	sd->entity.function = MEDIA_ENT_F_CAM_SENSOR;
>  
>  	/* Initialize source pad */
>  	imx219->pad.flags = MEDIA_PAD_FL_SOURCE;
>  
> -	ret = media_entity_pads_init(&imx219->sd.entity, 1, &imx219->pad);
> +	ret = media_entity_pads_init(&sd->entity, 1, &imx219->pad);
>  	if (ret) {
>  		dev_err(dev, "failed to init entity pads: %d\n", ret);
>  		goto error_handler_free;
>  	}
>  
> -	ret = v4l2_async_register_subdev_sensor(&imx219->sd);
> +	ret = v4l2_async_register_subdev_sensor(sd);
>  	if (ret < 0) {
>  		dev_err(dev, "failed to register sensor sub-device: %d\n", ret);
>  		goto error_media_entity;
> @@ -1594,7 +1596,7 @@ static int imx219_probe(struct i2c_client *client)
>  	return 0;
>  
>  error_media_entity:
> -	media_entity_cleanup(&imx219->sd.entity);
> +	media_entity_cleanup(&sd->entity);
>  
>  error_handler_free:
>  	imx219_free_controls(imx219);
diff mbox series

Patch

diff --git a/drivers/media/i2c/imx219.c b/drivers/media/i2c/imx219.c
index 7d29cf2b06f8..7c224d007f3e 100644
--- a/drivers/media/i2c/imx219.c
+++ b/drivers/media/i2c/imx219.c
@@ -1492,6 +1492,7 @@  static int imx219_check_hwcfg(struct device *dev)
 static int imx219_probe(struct i2c_client *client)
 {
 	struct device *dev = &client->dev;
+	struct v4l2_subdev *sd;
 	struct imx219 *imx219;
 	int ret;
 
@@ -1499,7 +1500,8 @@  static int imx219_probe(struct i2c_client *client)
 	if (!imx219)
 		return -ENOMEM;
 
-	v4l2_i2c_subdev_init(&imx219->sd, client, &imx219_subdev_ops);
+	sd = &imx219->sd;
+	v4l2_i2c_subdev_init(sd, client, &imx219_subdev_ops);
 
 	/* Check the hardware configuration in device tree */
 	if (imx219_check_hwcfg(dev))
@@ -1566,21 +1568,21 @@  static int imx219_probe(struct i2c_client *client)
 		goto error_power_off;
 
 	/* Initialize subdev */
-	imx219->sd.flags |= V4L2_SUBDEV_FL_HAS_DEVNODE |
-			    V4L2_SUBDEV_FL_HAS_EVENTS |
-			    V4L2_SUBDEV_FL_MULTIPLEXED;
-	imx219->sd.entity.function = MEDIA_ENT_F_CAM_SENSOR;
+	sd->flags |= V4L2_SUBDEV_FL_HAS_DEVNODE |
+		     V4L2_SUBDEV_FL_HAS_EVENTS |
+		     V4L2_SUBDEV_FL_MULTIPLEXED;
+	sd->entity.function = MEDIA_ENT_F_CAM_SENSOR;
 
 	/* Initialize source pad */
 	imx219->pad.flags = MEDIA_PAD_FL_SOURCE;
 
-	ret = media_entity_pads_init(&imx219->sd.entity, 1, &imx219->pad);
+	ret = media_entity_pads_init(&sd->entity, 1, &imx219->pad);
 	if (ret) {
 		dev_err(dev, "failed to init entity pads: %d\n", ret);
 		goto error_handler_free;
 	}
 
-	ret = v4l2_async_register_subdev_sensor(&imx219->sd);
+	ret = v4l2_async_register_subdev_sensor(sd);
 	if (ret < 0) {
 		dev_err(dev, "failed to register sensor sub-device: %d\n", ret);
 		goto error_media_entity;
@@ -1594,7 +1596,7 @@  static int imx219_probe(struct i2c_client *client)
 	return 0;
 
 error_media_entity:
-	media_entity_cleanup(&imx219->sd.entity);
+	media_entity_cleanup(&sd->entity);
 
 error_handler_free:
 	imx219_free_controls(imx219);