vhost-user-test: fix leaks

Spotted by ASAN.
Signed-off-by: NMarc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: NThomas Huth <thuth@redhat.com>
Reviewed-by: NMichael S. Tsirkin <mst@redhat.com>
Reviewed-by: NStefano Garzarella <sgarzare@redhat.com>
Fixes: ae31fb54 and 4d3f50ebReviewed-by: NPhilippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: NThomas Huth <thuth@redhat.com>

tests/vhost-user-test.c

@@ -588,6 +588,7 @@ static void test_server_free(TestServer *server)
         g_test_message("unable to rmdir: path (%s): %s",
                        server->tmpfs, strerror(errno));
     }
+    g_free(server->tmpfs);
 
     qemu_chr_fe_deinit(&server->chr, true);
 
@@ -605,6 +606,8 @@ static void test_server_free(TestServer *server)
 
     g_main_loop_unref(server->loop);
     g_main_context_unref(server->context);
+    g_cond_clear(&server->data_cond);
+    g_mutex_clear(&server->data_mutex);
     g_free(server);
 }