diff --git a/drivers/media/platform/rockchip/rkisp1/rkisp1-isp.c b/drivers/media/platform/rockchip/rkisp1/rkisp1-isp.c
index 88ca8b2283b7..45d1ab96fc6e 100644
--- a/drivers/media/platform/rockchip/rkisp1/rkisp1-isp.c
+++ b/drivers/media/platform/rockchip/rkisp1/rkisp1-isp.c
@@ -933,6 +933,7 @@ void rkisp1_isp_unregister(struct rkisp1_device *rkisp1)
 		return;
 
 	v4l2_device_unregister_subdev(&isp->sd);
+	v4l2_subdev_cleanup(&isp->sd);
 	media_entity_cleanup(&isp->sd.entity);
 }