From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Fri, 13 Jul 2018 15:05:37 +0000 (+0300)
Subject: samples/bpf: test_cgrp2_sock2: fix an off by one
X-Git-Tag: v5.15~8230^2~306^2~6
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=ee583014a9d8cc48cb4969f87cc02c12b966fabc;p=platform%2Fkernel%2Flinux-starfive.git

samples/bpf: test_cgrp2_sock2: fix an off by one

"prog_cnt" is the number of elements which are filled out in prog_fd[]
so the test should be >= instead of >.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: David Ahern <dsahern@gmail.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
---

diff --git a/samples/bpf/test_cgrp2_sock2.c b/samples/bpf/test_cgrp2_sock2.c
index 3b5be23..a9277b1 100644
--- a/samples/bpf/test_cgrp2_sock2.c
+++ b/samples/bpf/test_cgrp2_sock2.c
@@ -51,7 +51,7 @@ int main(int argc, char **argv)
 	if (argc > 3)
 		filter_id = atoi(argv[3]);
 
-	if (filter_id > prog_cnt) {
+	if (filter_id >= prog_cnt) {
 		printf("Invalid program id; program not found in file\n");
 		return EXIT_FAILURE;
 	}