[media] v4l2-fh: implement v4l2_priority support (fc5602be) · Commits · 戴 / test

drivers/media/video/v4l2-fh.c

+4 −0

Original line number	Diff line number	Diff line
		@@ -33,6 +33,8 @@ int v4l2_fh_init(struct v4l2_fh fh, struct video_device vdev)
		fh->vdev = vdev;
		INIT_LIST_HEAD(&fh->list);
		set_bit(V4L2_FL_USES_V4L2_FH, &fh->vdev->flags);
		fh->prio = V4L2_PRIORITY_UNSET;
		BUG_ON(vdev->prio == NULL);

		/*
		* fh->events only needs to be initialized if the driver
		@@ -51,6 +53,7 @@ void v4l2_fh_add(struct v4l2_fh *fh)
		{
		unsigned long flags;

		v4l2_prio_open(fh->vdev->prio, &fh->prio);
		spin_lock_irqsave(&fh->vdev->fh_lock, flags);
		list_add(&fh->list, &fh->vdev->fh_list);
		spin_unlock_irqrestore(&fh->vdev->fh_lock, flags);
		@@ -64,6 +67,7 @@ void v4l2_fh_del(struct v4l2_fh *fh)
		spin_lock_irqsave(&fh->vdev->fh_lock, flags);
		list_del_init(&fh->list);
		spin_unlock_irqrestore(&fh->vdev->fh_lock, flags);
		v4l2_prio_close(fh->vdev->prio, fh->prio);
		}
		EXPORT_SYMBOL_GPL(v4l2_fh_del);

+1 −0

Original line number	Diff line number	Diff line
		@@ -35,6 +35,7 @@ struct v4l2_fh {
		struct list_head list;
		struct video_device *vdev;
		struct v4l2_events events; / events, pending and subscribed */
		enum v4l2_priority prio;
		};

		/*