[PATCH bpf-next] libbpf: Close fd in bpf_object__reuse_map

[Hengqi Chen <hengqi.chen@xxxxxxxxx>]

pin_fd is dup-ed and assigned in bpf_map__reuse_fd. Close it
after reuse successfully.

Fixes: 57a00f41644f ("libbpf: Add auto-pinning of maps when loading BPF objects")
Signed-off-by: Hengqi Chen <hengqi.chen@xxxxxxxxx>
---
 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 43161fdd44bb..10ad500f1d6e 100644
--- a/tools/lib/bpf/libbpf.c
+++ b/tools/lib/bpf/libbpf.c
@@ -4804,6 +4804,7 @@ bpf_object__reuse_map(struct bpf_map *map)
 		close(pin_fd);
 		return err;
 	}
+	close(pin_fd);
 	map->pinned = true;
 	pr_debug("reused pinned map at '%s'\n", map->pin_path);
 
-- 
2.25.1