conf: don't send ttys when none are configured

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

diff --git a/src/lxc/conf.c b/src/lxc/conf.c
index f5922377bb793fd406b51edc6e3db9b5e3935a72..4e304830ee2e3805e5861a983b0a32dc7869ad9a 100644 (file)
--- a/src/lxc/conf.c
+++ b/src/lxc/conf.c
@@ -3072,6 +3072,9 @@ static int lxc_send_ttys_to_parent(struct lxc_handler *handler)
        int sock = handler->data_sock[0];
        int ret = -1;
 
+       if (!conf->tty)
+               return 0;
+
        for (i = 0; i < conf->tty; i++) {
                int ttyfds[2];
                struct lxc_pty_info *pty_info = &tty_info->pty_info[i];