cgroups: return ENOCGROUP2 from cgroup_attach()

Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>

diff --git a/src/lxc/cgroups/cgfsng.c b/src/lxc/cgroups/cgfsng.c
index 498c2d819189c22cbde838deb7a72c0a0b7cc4f9..c05e47906af2f6ba47289399bf78bfb320c01b76 100644 (file)
--- a/src/lxc/cgroups/cgfsng.c
+++ b/src/lxc/cgroups/cgfsng.c
@@ -3470,7 +3470,7 @@ int cgroup_attach(const struct lxc_conf *conf, const char *name,
 
        unified_fd = lxc_cmd_get_cgroup2_fd(name, lxcpath);
        if (unified_fd < 0)
-               return ret_errno(EBADF);
+               return ret_errno(ENOCGROUP2);
 
        if (!lxc_list_empty(&conf->id_map)) {
                struct userns_exec_unified_attach_data args = {