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 e2bc75ee16146e4446c4e13a010c6540d039293c..169e347c76f68520a0d00035235587b498001552 100644 (file)
--- 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)