linux-kernel - [PATCH v4 2/3] libbpf: fix wrong variable used in perf_event_uprobe_open

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Message-Id: <20220629151848.65587-3-nashuiliang@gmail.com>
Date:   Wed, 29 Jun 2022 23:18:46 +0800
From:   Chuang Wang <nashuiliang@...il.com>
To:     unlisted-recipients:; (no To-header on input)
Cc:     Chuang Wang <nashuiliang@...il.com>,
        Alexei Starovoitov <ast@...nel.org>,
        Daniel Borkmann <daniel@...earbox.net>,
        Andrii Nakryiko <andrii@...nel.org>,
        Martin KaFai Lau <kafai@...com>,
        Song Liu <songliubraving@...com>, Yonghong Song <yhs@...com>,
        John Fastabend <john.fastabend@...il.com>,
        KP Singh <kpsingh@...nel.org>, netdev@...r.kernel.org,
        bpf@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH v4 2/3] libbpf: fix wrong variable used in perf_event_uprobe_open_legacy()

Use "type" as opposed to "err" in pr_warn() after
determine_uprobe_perf_type_legacy() returns an error.

Signed-off-by: Chuang Wang <nashuiliang@...il.com>
---
 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 8a33a52e01a5..159b69d8b941 100644
--- a/tools/lib/bpf/libbpf.c
+++ b/tools/lib/bpf/libbpf.c
@@ -10241,7 +10241,7 @@ static int perf_event_uprobe_open_legacy(const char *probe_name, bool retprobe,
 	type = determine_uprobe_perf_type_legacy(probe_name, retprobe);
 	if (type < 0) {
 		pr_warn("failed to determine legacy uprobe event id for %s:0x%zx: %d\n",
-			binary_path, offset, err);
+			binary_path, offset, type);
 		return type;
 	}
 
-- 
2.34.1