libbpf: Fix error path in bpf_object__elf_init()

When it failed to get section names, it should call into
bpf_object__elf_finish() like others.

Fixes: 88a82120282b ("libbpf: Factor out common ELF operations and improve logging")
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/20210317145414.884817-1-namhyung@kernel.org

diff --git a/tools/lib/bpf/libbpf.c b/tools/lib/bpf/libbpf.c
index d43cc3f29daee987c4dbde5a4ec3c018716d3fc4..4181d178ee7b10e0c7652f6ac5f0777257d22bd7 100644 (file)
--- a/tools/lib/bpf/libbpf.c
+++ b/tools/lib/bpf/libbpf.c
@@ -1181,7 +1181,8 @@ static int bpf_object__elf_init(struct bpf_object *obj)
        if (!elf_rawdata(elf_getscn(obj->efile.elf, obj->efile.shstrndx), NULL)) {
                pr_warn("elf: failed to get section names strings from %s: %s\n",
                        obj->path, elf_errmsg(-1));
-               return -LIBBPF_ERRNO__FORMAT;
+               err = -LIBBPF_ERRNO__FORMAT;
+               goto errout;
        }
 
        /* Old LLVM set e_machine to EM_NONE */