[media] media: am437x-vpfe: embed video_device struct in vpfe_device

Embed video_device struct (video_dev) in vpfe_device and
Unregister path doesn't need to free the video_device
structure, hence, change the video_device.release callback
point to video_device_release_empty.

Signed-off-by: Lad, Prabhakar <prabhakar.csengg@gmail.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>

diff --git a/drivers/media/platform/am437x/am437x-vpfe.c b/drivers/media/platform/am437x/am437x-vpfe.c
index 006e9e8..4899924 100644 (file)
--- a/drivers/media/platform/am437x/am437x-vpfe.c
+++ b/drivers/media/platform/am437x/am437x-vpfe.c
@@ -2316,7 +2316,7 @@ vpfe_async_bound(struct v4l2_async_notifier *notifier,
                return -EINVAL;
        }
 
-       vpfe->video_dev->tvnorms |= sdinfo->inputs[0].std;
+       vpfe->video_dev.tvnorms |= sdinfo->inputs[0].std;
 
        /* setup the supported formats & indexes */
        for (j = 0, i = 0; ; ++j) {
@@ -2389,9 +2389,9 @@ static int vpfe_probe_complete(struct vpfe_device *vpfe)
 
        INIT_LIST_HEAD(&vpfe->dma_queue);
 
-       vdev = vpfe->video_dev;
+       vdev = &vpfe->video_dev;
        strlcpy(vdev->name, VPFE_MODULE_NAME, sizeof(vdev->name));
-       vdev->release = video_device_release;
+       vdev->release = video_device_release_empty;
        vdev->fops = &vpfe_fops;
        vdev->ioctl_ops = &vpfe_ioctl_ops;
        vdev->v4l2_dev = &vpfe->v4l2_dev;
@@ -2399,7 +2399,7 @@ static int vpfe_probe_complete(struct vpfe_device *vpfe)
        vdev->queue = q;
        vdev->lock = &vpfe->lock;
        video_set_drvdata(vdev, vpfe);
-       err = video_register_device(vpfe->video_dev, VFL_TYPE_GRABBER, -1);
+       err = video_register_device(&vpfe->video_dev, VFL_TYPE_GRABBER, -1);
        if (err) {
                vpfe_err(vpfe,
                        "Unable to register video device.\n");
@@ -2565,17 +2565,11 @@ static int vpfe_probe(struct platform_device *pdev)
                return -EINVAL;
        }
 
-       vpfe->video_dev = video_device_alloc();
-       if (!vpfe->video_dev) {
-               dev_err(&pdev->dev, "Unable to allocate video device\n");
-               return -ENOMEM;
-       }
-
        ret = v4l2_device_register(&pdev->dev, &vpfe->v4l2_dev);
        if (ret) {
                vpfe_err(vpfe,
                        "Unable to register v4l2 device.\n");
-               goto probe_out_video_release;
+               return ret;
        }
 
        /* set the driver data in platform device */
@@ -2613,9 +2607,6 @@ static int vpfe_probe(struct platform_device *pdev)
 
 probe_out_v4l2_unregister:
        v4l2_device_unregister(&vpfe->v4l2_dev);
-probe_out_video_release:
-       if (!video_is_registered(vpfe->video_dev))
-               video_device_release(vpfe->video_dev);
        return ret;
 }
 
@@ -2632,7 +2623,7 @@ static int vpfe_remove(struct platform_device *pdev)
 
        v4l2_async_notifier_unregister(&vpfe->notifier);
        v4l2_device_unregister(&vpfe->v4l2_dev);
-       video_unregister_device(vpfe->video_dev);
+       video_unregister_device(&vpfe->video_dev);
 
        return 0;
 }

diff --git a/drivers/media/platform/am437x/am437x-vpfe.h b/drivers/media/platform/am437x/am437x-vpfe.h
index 956fb9e..5bfb356 100644 (file)
--- a/drivers/media/platform/am437x/am437x-vpfe.h
+++ b/drivers/media/platform/am437x/am437x-vpfe.h
@@ -222,7 +222,7 @@ struct vpfe_ccdc {
 struct vpfe_device {
        /* V4l2 specific parameters */
        /* Identifies video device for this channel */
-       struct video_device *video_dev;
+       struct video_device video_dev;
        /* sub devices */
        struct v4l2_subdev **sd;
        /* vpfe cfg */