Re: [PATCH] bpf: Initialize ret to 0 inside btf_populate_kfunc_set()

From: Kumar Kartikeya Dwivedi
Date: Sat Feb 19 2022 - 19:42:17 EST


On Sat, Feb 19, 2022 at 10:09:15PM IST, Souptick Joarder wrote:
> From: "Souptick Joarder (HPE)" <jrdr.linux@xxxxxxxxx>
>
> Kernel test robot reported below error ->
>
> kernel/bpf/btf.c:6718 btf_populate_kfunc_set()
> error: uninitialized symbol 'ret'.
>
> Initialize ret to 0.
>
> Fixes: dee872e124e8 ("bpf: Populate kfunc BTF ID sets in struct btf")
> Reported-by: kernel test robot <lkp@xxxxxxxxx>
> Signed-off-by: Souptick Joarder (HPE) <jrdr.linux@xxxxxxxxx>
> ---

Thanks for the fix.

Acked-by: Kumar Kartikeya Dwivedi <memxor@xxxxxxxxx>

> kernel/bpf/btf.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/kernel/bpf/btf.c b/kernel/bpf/btf.c
> index 02d7014417a0..2c4c5dbe2abe 100644
> --- a/kernel/bpf/btf.c
> +++ b/kernel/bpf/btf.c
> @@ -6706,7 +6706,7 @@ static int btf_populate_kfunc_set(struct btf *btf, enum btf_kfunc_hook hook,
> const struct btf_kfunc_id_set *kset)
> {
> bool vmlinux_set = !btf_is_module(btf);
> - int type, ret;
> + int type, ret = 0;
>
> for (type = 0; type < ARRAY_SIZE(kset->sets); type++) {
> if (!kset->sets[type])
> --
> 2.25.1
>

--
Kartikeya