Clean up the gbm/egl as well

backend/drm/renderer.c

@@ -75,6 +75,10 @@ bool wlr_drm_surface_init(struct wlr_drm_surface *surf,
 			gbm_surface_release_buffer(surf->gbm, surf->back);
 			surf->back = NULL;
 		}
+		gbm_surface_destroy(surf->gbm);
+	}
+	if (surf->egl) {
+		eglDestroySurface(surf->renderer->egl.display, surf->egl);
 	}
 
 	surf->gbm = gbm_surface_create(renderer->gbm, width, height,