From: Prashant Bhole <bhole_prashant_q7@lab.ntt.co.jp>
Date: Mon, 17 Dec 2018 07:57:50 +0000 (+0900)
Subject: bpf: libbpf: fix memleak by freeing line_info
X-Git-Tag: v5.0-rc1~129^2~15^2~13
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=07a09d1b73c9651289d35449460d10e195e2f197;p=thirdparty%2Flinux.git

bpf: libbpf: fix memleak by freeing line_info

This patch fixes a memory leak in libbpf by freeing up line_info
member of struct bpf_program while unloading a program.

Fixes: 3d65014146c6 ("bpf: libbpf: Add btf_line_info support to libbpf")
Signed-off-by: Prashant Bhole <bhole_prashant_q7@lab.ntt.co.jp>
Acked-by: Martin KaFai Lau <kafai@fb.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
---

diff --git a/tools/lib/bpf/libbpf.c b/tools/lib/bpf/libbpf.c
index e2bc75ee16146..169e347c76f68 100644
--- a/tools/lib/bpf/libbpf.c
+++ b/tools/lib/bpf/libbpf.c
@@ -266,6 +266,7 @@ void bpf_program__unload(struct bpf_program *prog)
 
 	zclose(prog->btf_fd);
 	zfree(&prog->func_info);
+	zfree(&prog->line_info);
 }
 
 static void bpf_program__exit(struct bpf_program *prog)