From: Jiri Olsa <jolsa@kernel.org>
To: Alexei Starovoitov <ast@kernel.org>,
Daniel Borkmann <daniel@iogearbox.net>,
Andrii Nakryiko <andrii@kernel.org>
Cc: bpf@vger.kernel.org, Martin KaFai Lau <kafai@fb.com>,
Song Liu <songliubraving@fb.com>, Yonghong Song <yhs@fb.com>,
John Fastabend <john.fastabend@gmail.com>,
KP Singh <kpsingh@chromium.org>,
Stanislav Fomichev <sdf@google.com>, Hao Luo <haoluo@google.com>
Subject: [PATCH bpf] libbpf: Use correct return pointer in attach_raw_tp
Date: Mon, 14 Nov 2022 15:52:57 +0100 [thread overview]
Message-ID: <20221114145257.882322-1-jolsa@kernel.org> (raw)
We need to pass '*link' to final libbpf_get_error,
because that one holds the return value, not 'link'.
Fixes: 4fa5bcfe07f7 ("libbpf: Allow BPF program auto-attach handlers to bail out")
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
---
tools/lib/bpf/libbpf.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/tools/lib/bpf/libbpf.c b/tools/lib/bpf/libbpf.c
index 1d263885d635..4a97e3adbe84 100644
--- a/tools/lib/bpf/libbpf.c
+++ b/tools/lib/bpf/libbpf.c
@@ -11223,7 +11223,7 @@ static int attach_raw_tp(const struct bpf_program *prog, long cookie, struct bpf
}
*link = bpf_program__attach_raw_tracepoint(prog, tp_name);
- return libbpf_get_error(link);
+ return libbpf_get_error(*link);
}
/* Common logic for all BPF program types that attach to a btf_id */
--
2.38.1
next reply other threads:[~2022-11-14 14:53 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-11-14 14:52 Jiri Olsa [this message]
2022-11-14 19:40 ` [PATCH bpf] libbpf: Use correct return pointer in attach_raw_tp patchwork-bot+netdevbpf
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