[PATCH net-next] bpf: libbpf: fix memleak by freeing line_info

[Prashant Bhole]

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...@lab.ntt.co.jp>
---
 tools/lib/bpf/libbpf.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/tools/lib/bpf/libbpf.c b/tools/lib/bpf/libbpf.c
index e2bc75ee1614..169e347c76f6 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)
-- 
2.17.2