video_unregister_device(dev->vfd_enc);
video_unregister_device(dev->vfd_dec);
+ video_device_release(dev->vfd_enc);
+ video_device_release(dev->vfd_dec);
v4l2_device_unregister(&dev->v4l2_dev);
s5p_mfc_release_firmware(dev);
vb2_dma_contig_cleanup_ctx(dev->alloc_ctx[0]);