drm/exynos: Drop drm_vblank_cleanup

Only in the load failure path, where the hardware is quiet anyway.

Cc: Inki Dae <inki.dae@samsung.com>
Cc: Joonyoung Shim <jy0922.shim@samsung.com>
Cc: Seung-Woo Kim <sw0312.kim@samsung.com>
Cc: Kyungmin Park <kyungmin.park@samsung.com>
Reviewed-by: NInki Dae <inki.dae@samsung.com>
Signed-off-by: NDaniel Vetter <daniel.vetter@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170524145212.27837-19-daniel.vetter@ffwll.ch

drivers/gpu/drm/exynos/exynos_drm_drv.c

@@ -378,7 +378,7 @@ static int exynos_drm_bind(struct device *dev)
 	/* Probe non kms sub drivers and virtual display driver. */
 	ret = exynos_drm_device_subdrv_probe(drm);
 	if (ret)
-		goto err_cleanup_vblank;
+		goto err_unbind_all;
 
 	drm_mode_config_reset(drm);
 
@@ -409,8 +409,6 @@ static int exynos_drm_bind(struct device *dev)
 	exynos_drm_fbdev_fini(drm);
 	drm_kms_helper_poll_fini(drm);
 	exynos_drm_device_subdrv_remove(drm);
-err_cleanup_vblank:
-	drm_vblank_cleanup(drm);
 err_unbind_all:
 	component_unbind_all(drm->dev, drm);
 err_mode_config_cleanup: