drm: Release resources with a safer function

We should use 'ida_simple_remove()' instead of 'ida_remove()' when freeing
resources allocated with 'ida_simple_get()'.

Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1475825261-7735-1-git-send-email-christophe.jaillet@wanadoo.fr

drivers/gpu/drm/drm_connector.c

@@ -341,11 +341,11 @@ void drm_connector_cleanup(struct drm_connector *connector)
 	list_for_each_entry_safe(mode, t, &connector->modes, head)
 		drm_mode_remove(connector, mode);
 
-	ida_remove(&drm_connector_enum_list[connector->connector_type].ida,
-		   connector->connector_type_id);
+	ida_simple_remove(&drm_connector_enum_list[connector->connector_type].ida,
+			  connector->connector_type_id);
 
-	ida_remove(&dev->mode_config.connector_ida,
-		   connector->index);
+	ida_simple_remove(&dev->mode_config.connector_ida,
+			  connector->index);
 
 	kfree(connector->display_info.bus_formats);
 	drm_mode_object_unregister(dev, &connector->base);