From: Wang Hai <wanghai38@huawei.com>
Date: Wed, 16 Jun 2021 04:25:34 +0000 (+0800)
Subject: samples/bpf: Fix the error return code of xdp_redirect's main()
X-Git-Tag: v5.4.132~134
X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=e21b9e8436ef82bf44f77f778f009f72fde2ccdf;p=users%2Fdwmw2%2Flinux.git

samples/bpf: Fix the error return code of xdp_redirect's main()

[ Upstream commit 7c6090ee2a7b3315410cfc83a94c3eb057407b25 ]

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

If bpf_map_update_elem() failed, main() should return a negative error.

Fixes: 832622e6bd18 ("xdp: sample program for new bpf_redirect helper")
Signed-off-by: Wang Hai <wanghai38@huawei.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20210616042534.315097-1-wanghai38@huawei.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---

diff --git a/samples/bpf/xdp_redirect_user.c b/samples/bpf/xdp_redirect_user.c
index 5440cd620607f..b7bc2a339d77c 100644
--- a/samples/bpf/xdp_redirect_user.c
+++ b/samples/bpf/xdp_redirect_user.c
@@ -216,5 +216,5 @@ int main(int argc, char **argv)
 	poll_stats(2, ifindex_out);
 
 out:
-	return 0;
+	return ret;
 }