wlr_output_power_management_v1: Init output_power->link
This makes sure the `wl_list_remove(&output_power->link)` in
`output_power_destroy()` does not crash even when the output_power never
got added to a list. This can e.g. happen in the `mgmt->output ==
output` error path of `output_power_manager_get_output_power`.
@@ -123,6 +123,7 @@ static void output_power_manager_get_output_power(struct wl_client *client,
}
output_power->output = output;
output_power->manager = manager;
+ wl_list_init(&output_power->link);
uint32_t version = wl_resource_get_version(manager_resource);
output_power->resource = wl_resource_create(client,
