confile: cleanup get_config_idmaps()

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

diff --git a/src/lxc/confile.c b/src/lxc/confile.c
index b1885ef155f6b0ecda2a21ba40c6b1cdb521202c..f93242f65528b33f803fd5a74ada8995a504f0a5 100644 (file)
--- a/src/lxc/confile.c
+++ b/src/lxc/confile.c
@@ -3815,7 +3815,7 @@ static int get_config_idmaps(const char *key, char *retv, int inlen,
                               (map->idtype == ID_TYPE_UID) ? 'u' : 'g',
                               map->nsid, map->hostid, map->range);
                if (ret < 0 || ret >= __LXC_IDMAP_STR_BUF)
-                       return -1;
+                       return ret_errno(EIO);
 
                strprint(retv, inlen, "%s%s", buf, (listlen-- > 1) ? "\n" : "");
        }