Re: [PATCH bpf-next] bpf: btf: fix inconsistent IS_ERR and PTR_ERR

From: Martin KaFai Lau
Date: Tue Jul 24 2018 - 11:46:39 EST


On Tue, Jul 24, 2018 at 10:55:24AM +0800, YueHaibing wrote:
> Fix inconsistent IS_ERR and PTR_ERR in get_btf,
> the proper pointer to be passed as argument is '*btf'
>
> This issue was detected with the help of Coccinelle.
>
> Fixes: 2d3feca8c44f ("bpf: btf: print map dump and lookup with btf info")
> Signed-off-by: YueHaibing <yuehaibing@xxxxxxxxxx>
Acked-by: Martin KaFai Lau <kafai@xxxxxx>

> ---
> tools/bpf/bpftool/map.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/tools/bpf/bpftool/map.c b/tools/bpf/bpftool/map.c
> index 9c81918..0ee3ba4 100644
> --- a/tools/bpf/bpftool/map.c
> +++ b/tools/bpf/bpftool/map.c
> @@ -230,7 +230,7 @@ static int get_btf(struct bpf_map_info *map_info, struct btf **btf)
>
> *btf = btf__new((__u8 *)btf_info.btf, btf_info.btf_size, NULL);
> if (IS_ERR(*btf)) {
> - err = PTR_ERR(btf);
> + err = PTR_ERR(*btf);
> *btf = NULL;
> }
>
> --
> 2.7.0
>
>