netdev - [PATCH] tools/bpftool: Fix error return code in do

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Message-ID: <20210609115916.2186872-1-chengzhihao1@huawei.com>
Date:   Wed, 9 Jun 2021 19:59:16 +0800
From:   Zhihao Cheng <chengzhihao1@...wei.com>
To:     <ast@...nel.org>, <daniel@...earbox.net>, <andrii@...nel.org>,
        <quentin@...valent.com>, <kuba@...nel.org>
CC:     <netdev@...r.kernel.org>, <bpf@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>, <chengzhihao1@...wei.com>,
        <yukuai3@...wei.com>
Subject: [PATCH] tools/bpftool: Fix error return code in do_batch()

Fix to return a negative error code from the error handling
case instead of 0, as done elsewhere in this function.

Fixes: 668da745af3c2 ("tools: bpftool: add support for quotations ...")
Reported-by: Hulk Robot <hulkci@...wei.com>
Signed-off-by: Zhihao Cheng <chengzhihao1@...wei.com>
---
 tools/bpf/bpftool/main.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/tools/bpf/bpftool/main.c b/tools/bpf/bpftool/main.c
index 7f2817d97079..3ddfd4843738 100644
--- a/tools/bpf/bpftool/main.c
+++ b/tools/bpf/bpftool/main.c
@@ -341,8 +341,10 @@ static int do_batch(int argc, char **argv)
 		n_argc = make_args(buf, n_argv, BATCH_ARG_NB_MAX, lines);
 		if (!n_argc)
 			continue;
-		if (n_argc < 0)
+		if (n_argc < 0) {
+			err = n_argc;
 			goto err_close;
+		}
 
 		if (json_output) {
 			jsonw_start_object(json_wtr);
-- 
2.31.1