From: wangsirun <wangsirun@zhidaoauto.com>

When I used the json-writer.c file as a lib, I found that
it often caused coredump errors, so I submitted this patch

Signed-off-by: sirun Wang <870355373@qq.com>

Submitted-As: https://lore.kernel.org/git/pull.1576.git.git.1695124498925.gitgitgadget@gmail.com