libbpf: Simplify the return expression of build_map_pin_path()

Simplify the return expression.

Signed-off-by: Xu Wang <vulab@iscas.ac.cn>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Yonghong Song <yhs@fb.com>
Link: https://lore.kernel.org/bpf/20200819025324.14680-1-vulab@iscas.ac.cn

diff --git a/tools/lib/bpf/libbpf.c b/tools/lib/bpf/libbpf.c
index 77d420c020944fb316bbdf189ba5fc14d6cb2edc..829d62a3ad5f18dcee92345bb9192b47e530189c 100644 (file)
--- a/tools/lib/bpf/libbpf.c
+++ b/tools/lib/bpf/libbpf.c
@@ -1943,7 +1943,7 @@ static bool get_map_field_int(const char *map_name, const struct btf *btf,
 static int build_map_pin_path(struct bpf_map *map, const char *path)
 {
        char buf[PATH_MAX];
-       int err, len;
+       int len;
 
        if (!path)
                path = "/sys/fs/bpf";
@@ -1954,11 +1954,7 @@ static int build_map_pin_path(struct bpf_map *map, const char *path)
        else if (len >= PATH_MAX)
                return -ENAMETOOLONG;
 
-       err = bpf_map__set_pin_path(map, buf);
-       if (err)
-               return err;
-
-       return 0;
+       return bpf_map__set_pin_path(map, buf);
 }