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From: nswon <swnam0729@gmail.com>
To: Quentin Monnet <qmo@kernel.org>,
	Alexei Starovoitov <ast@kernel.org>,
	Daniel Borkmann <daniel@iogearbox.net>,
	Andrii Nakryiko <andrii@kernel.org>,
	Martin KaFai Lau <martin.lau@linux.dev>,
	Eduard Zingerman <eddyz87@gmail.com>, Song Liu <song@kernel.org>,
	Yonghong Song <yonghong.song@linux.dev>,
	John Fastabend <john.fastabend@gmail.com>,
	KP Singh <kpsingh@kernel.org>,
	Stanislav Fomichev <sdf@fomichev.me>, Hao Luo <haoluo@google.com>,
	Jiri Olsa <jolsa@kernel.org>
Cc: nswon <swnam0729@gmail.com>,
	bpf@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH] bpf: bpftool: Setting error code in do_loader()
Date: Mon, 10 Mar 2025 14:25:55 +0900	[thread overview]
Message-ID: <20250310052555.53483-1-swnam0729@gmail.com> (raw)

missing error code in do_loader()
bpf_object__open_file() failed, but return 0
This means the command's exit status code was successful, so make sure to return the correct error code.

Link: https://lore.kernel.org/bpf/d3b5b4b4-19bb-4619-b4dd-86c958c4a367@stanley.mountain/t/#u
Closes: https://github.com/libbpf/bpftool/issues/156
Signed-off-by: nswon <swnam0729@gmail.com>
---
 tools/bpf/bpftool/prog.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/tools/bpf/bpftool/prog.c b/tools/bpf/bpftool/prog.c
index e71be67f1d86..641802e308f4 100644
--- a/tools/bpf/bpftool/prog.c
+++ b/tools/bpf/bpftool/prog.c
@@ -1928,6 +1928,7 @@ static int do_loader(int argc, char **argv)
 
 	obj = bpf_object__open_file(file, &open_opts);
 	if (!obj) {
+		err = libbpf_get_error(obj);
 		p_err("failed to open object file");
 		goto err_close_obj;
 	}
-- 
2.39.3 (Apple Git-146)


             reply	other threads:[~2025-03-10  5:26 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-03-10  5:25 nswon [this message]
2025-03-10 13:28 ` [PATCH] bpf: bpftool: Setting error code in do_loader() Quentin Monnet
2025-03-11  2:33   ` 남세원

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