drm/rockchip: remove redundant statement

The call to arm_iommu_detach_device() on the previous line sets
dev->archdata.mapping to NULL so this call is always a no-op.

Signed-off-by: John Keeping <john@metanate.com>

diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_drv.c b/drivers/gpu/drm/rockchip/rockchip_drm_drv.c
index f556a8f4fde6c7f2e6f36708b07a2d1de4d13118..7695c791ad952a086db1fd32fdce992617c3f9ab 100644 (file)
--- a/drivers/gpu/drm/rockchip/rockchip_drm_drv.c
+++ b/drivers/gpu/drm/rockchip/rockchip_drm_drv.c
@@ -244,7 +244,6 @@ static int rockchip_drm_unload(struct drm_device *drm_dev)
        drm_kms_helper_poll_fini(drm_dev);
        component_unbind_all(dev, drm_dev);
        arm_iommu_detach_device(dev);
-       arm_iommu_release_mapping(dev->archdata.mapping);
        drm_mode_config_cleanup(drm_dev);
        drm_dev->dev_private = NULL;