Daniel T. Lee wrote:
> Recently, from commit 94a1fedd63ed ("libbpf: Add btf__parse_raw() and
> generic btf__parse() APIs"), new API has been added to libbpf that
> allows to parse BTF from raw data file (btf__parse_raw()).
>
> The commit derives build failure of samples/bpf due to improper access
> of uninitialized pointer at btf_parse_raw().
>
> btf.c: In function btf__parse_raw:
> btf.c:625:28: error: btf may be used uninitialized in this function
> 625 | return err ? ERR_PTR(err) : btf;
> | ~~~~~~~~~~~~~~~~~~~^~~~~
>
> This commit fixes the build failure of samples/bpf by adding code of
> initializing btf pointer as NULL.
>
> Fixes: 94a1fedd63ed ("libbpf: Add btf__parse_raw() and generic btf__parse() APIs")
> Signed-off-by: Daniel T. Lee <danieltimlee@xxxxxxxxx>
> ---
Unless errno is zero this should be ok in practice, but I guess compiler
wont know that.
Acked-by: John Fastabend <john.fastabend@xxxxxxxxx>
