On Thu, Nov 19, 2020 at 03:22:40PM -0800, Andrii Nakryiko wrote:
[ ... ]
> +int btf__get_from_id(__u32 id, struct btf **btf)
> +{
> + struct btf *res;
> + int btf_fd;
> +
> + *btf = NULL;
> + btf_fd = bpf_btf_get_fd_by_id(id);
> + if (btf_fd < 0)
> + return 0;
It should return an error.
> +
> + res = btf_get_from_fd(btf_fd, NULL);
> + close(btf_fd);
> + if (IS_ERR(res))
> + return PTR_ERR(res);
> +
> + *btf = res;
> + return 0;
> }
>
