media: staging/media: drop vb2_queue_release()

This is only needed for drivers that do not use vb2_fop_release().
Note that vb2_queue_release() is *not* the counterpart of vb2_queue_init()
as some drivers here seem to think.

Also use vb2_video_unregister_device() to automatically stop streaming
at unregister time for those drivers that set vdev->queue.

Signed-off-by: Hans Verkuil <[e-mail]>
Signed-off-by: Mauro Carvalho Chehab <[e-mail]>

drivers/staging/media/meson/vdec/vdec.c

···
 	dst_vq->min_buffers_needed = 1;
 	dst_vq->dev = sess->core->dev;
 	dst_vq->lock = &sess->lock;
-	ret = vb2_queue_init(dst_vq);
-	if (ret) {
-		vb2_queue_release(src_vq);
-		return ret;
-	}
-
-	return 0;
+	return vb2_queue_init(dst_vq);
 }
 
 static int vdec_init_ctrls(struct amvdec_session *sess)

drivers/staging/media/rkisp1/rkisp1-capture.c

···
 static void rkisp1_unregister_capture(struct rkisp1_capture *cap)
 {
 	media_entity_cleanup(&cap->vnode.vdev.entity);
-	video_unregister_device(&cap->vnode.vdev);
+	vb2_video_unregister_device(&cap->vnode.vdev);
 }
 
 void rkisp1_capture_devs_unregister(struct rkisp1_device *rkisp1)

drivers/staging/media/rkisp1/rkisp1-params.c

···
 	node->pad.flags = MEDIA_PAD_FL_SOURCE;
 	ret = media_entity_pads_init(&vdev->entity, 1, &node->pad);
 	if (ret)
-		goto err_release_queue;
+		return ret;
 	ret = video_register_device(vdev, VFL_TYPE_VIDEO, -1);
 	if (ret) {
 		dev_err(rkisp1->dev,
···
 	return 0;
 err_cleanup_media_entity:
 	media_entity_cleanup(&vdev->entity);
-err_release_queue:
-	vb2_queue_release(vdev->queue);
 	return ret;
 }
 
···
 	struct rkisp1_vdev_node *node = &params->vnode;
 	struct video_device *vdev = &node->vdev;
 
-	video_unregister_device(vdev);
+	vb2_video_unregister_device(vdev);
 	media_entity_cleanup(&vdev->entity);
-	vb2_queue_release(vdev->queue);
 }

drivers/staging/media/rkisp1/rkisp1-stats.c

···
 	node->pad.flags = MEDIA_PAD_FL_SINK;
 	ret = media_entity_pads_init(&vdev->entity, 1, &node->pad);
 	if (ret)
-		goto err_release_queue;
+		goto err_mutex_destroy;
 
 	ret = video_register_device(vdev, VFL_TYPE_VIDEO, -1);
 	if (ret) {
···
 
 err_cleanup_media_entity:
 	media_entity_cleanup(&vdev->entity);
-err_release_queue:
-	vb2_queue_release(vdev->queue);
+err_mutex_destroy:
 	mutex_destroy(&node->vlock);
 	return ret;
 }
···
 	struct rkisp1_vdev_node *node = &stats->vnode;
 	struct video_device *vdev = &node->vdev;
 
-	video_unregister_device(vdev);
+	vb2_video_unregister_device(vdev);
 	media_entity_cleanup(&vdev->entity);
-	vb2_queue_release(vdev->queue);
 	mutex_destroy(&node->vlock);
 }

drivers/staging/media/tegra-video/vi.c

···
 	struct tegra_csi_channel *csi_chan;
 	struct tegra_vi_channel *chan;
 
-	list_for_each_entry(chan, &vi->vi_chans, list) {
-		video_unregister_device(&chan->video);
-		mutex_lock(&chan->video_lock);
-		vb2_queue_release(&chan->queue);
-		mutex_unlock(&chan->video_lock);
-	}
+	list_for_each_entry(chan, &vi->vi_chans, list)
+		vb2_video_unregister_device(&chan->video);
 
 	list_for_each_entry(csi_chan, &csi->csi_chans, list)
 		v4l2_device_unregister_subdev(&csi_chan->subdev);