From 5a3941f84b8f91bb1e111499d803b32188d33e5d Mon Sep 17 00:00:00 2001 From: Jiri Olsa Date: Thu, 2 May 2024 09:55:40 +0200 Subject: [PATCH] libbpf: Fix error message in attach_kprobe_session We just failed to retrieve pattern, so we need to print spec instead. Fixes: 2ca178f02b2f ("libbpf: Add support for kprobe session attach") Reported-by: Andrii Nakryiko Signed-off-by: Jiri Olsa Signed-off-by: Andrii Nakryiko Link: https://lore.kernel.org/bpf/20240502075541.1425761-1-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 4ffc8873d1ad..68c87aed8335 100644 --- a/tools/lib/bpf/libbpf.c +++ b/tools/lib/bpf/libbpf.c @@ -11605,7 +11605,7 @@ static int attach_kprobe_session(const struct bpf_program *prog, long cookie, spec = prog->sec_name + sizeof("kprobe.session/") - 1; n = sscanf(spec, "%m[a-zA-Z0-9_.*?]", &pattern); if (n < 1) { - pr_warn("kprobe session pattern is invalid: %s\n", pattern); + pr_warn("kprobe session pattern is invalid: %s\n", spec); return -EINVAL; }