V4L/DVB (10644): v4l2-subdev: rename dev field to v4l2_dev

Remain consistent in the naming: fields pointing to v4l2_device should
be called v4l2_dev. There are too many device-like entities without
adding to the confusion by mixing naming conventions.

Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

Documentation/video4linux/v4l2-framework.txt

@@ -268,7 +268,7 @@ errors (except -ENOIOCTLCMD) occured, then 0 is returned.
 
 The second argument to both calls is a group ID. If 0, then all subdevs are
 called. If non-zero, then only those whose group ID match that value will
-be called. Before a bridge driver registers a subdev it can set subdev->grp_id
+be called. Before a bridge driver registers a subdev it can set sd->grp_id
 to whatever value it wants (it's 0 by default). This value is owned by the
 bridge driver and the sub-device driver will never modify or use it.
 

drivers/media/video/v4l2-device.c

@@ -72,10 +72,10 @@ int v4l2_device_register_subdev(struct v4l2_device *v4l2_dev,
 	if (v4l2_dev == NULL || sd == NULL || !sd->name[0])
 		return -EINVAL;
 	/* Warn if we apparently re-register a subdev */
-	WARN_ON(sd->dev != NULL);
+	WARN_ON(sd->v4l2_dev != NULL);
 	if (!try_module_get(sd->owner))
 		return -ENODEV;
-	sd->dev = v4l2_dev;
+	sd->v4l2_dev = v4l2_dev;
 	spin_lock(&v4l2_dev->lock);
 	list_add_tail(&sd->list, &v4l2_dev->subdevs);
 	spin_unlock(&v4l2_dev->lock);
@@ -86,12 +86,12 @@ EXPORT_SYMBOL_GPL(v4l2_device_register_subdev);
 void v4l2_device_unregister_subdev(struct v4l2_subdev *sd)
 {
 	/* return if it isn't registered */
-	if (sd == NULL || sd->dev == NULL)
+	if (sd == NULL || sd->v4l2_dev == NULL)
 		return;
-	spin_lock(&sd->dev->lock);
+	spin_lock(&sd->v4l2_dev->lock);
 	list_del(&sd->list);
-	spin_unlock(&sd->dev->lock);
-	sd->dev = NULL;
+	spin_unlock(&sd->v4l2_dev->lock);
+	sd->v4l2_dev = NULL;
 	module_put(sd->owner);
 }
 EXPORT_SYMBOL_GPL(v4l2_device_unregister_subdev);

include/media/v4l2-subdev.h

@@ -137,7 +137,7 @@ struct v4l2_subdev_ops {
 struct v4l2_subdev {
 	struct list_head list;
 	struct module *owner;
-	struct v4l2_device *dev;
+	struct v4l2_device *v4l2_dev;
 	const struct v4l2_subdev_ops *ops;
 	/* name must be unique */
 	char name[V4L2_SUBDEV_NAME_SIZE];
@@ -176,7 +176,7 @@ static inline void v4l2_subdev_init(struct v4l2_subdev *sd,
 	/* ops->core MUST be set */
 	BUG_ON(!ops || !ops->core);
 	sd->ops = ops;
-	sd->dev = NULL;
+	sd->v4l2_dev = NULL;
 	sd->name[0] = '\0';
 	sd->grp_id = 0;
 	sd->priv = NULL;