diff --git a/drivers/video/rockchip/vcodec/vcodec_iommu_ion.c b/drivers/video/rockchip/vcodec/vcodec_iommu_ion.c
index 186bfbfcaaec..658e9d65d119 100644
--- a/drivers/video/rockchip/vcodec/vcodec_iommu_ion.c
+++ b/drivers/video/rockchip/vcodec/vcodec_iommu_ion.c
@@ -183,7 +183,7 @@ vcodec_ion_map_iommu(struct vcodec_iommu_session_info *session_info, int idx,
 				    ion_buffer->handle, iova, size);
 	else
 		ret = ion_phys(ion_info->ion_client, ion_buffer->handle,
-			       iova, size);
+			       iova, (size_t *)size);
 
 	return ret;
 }