get_item(utsname): don't dereference utsname if it is NULL

Signed-off-by: Serge Hallyn <serge.hallyn@ubuntu.com>

diff --git a/src/lxc/confile.c b/src/lxc/confile.c
index 8b8cb6daaf5bdcef7a793b5a02e4df23c324c612..11d863b343826848eed855c7270038bc10baf09f 100644 (file)
--- a/src/lxc/confile.c
+++ b/src/lxc/confile.c
@@ -1530,7 +1530,7 @@ int lxc_get_config_item(struct lxc_conf *c, char *key, char *retv, int inlen)
        else if (strncmp(key, "lxc.cgroup.", 11) == 0) // specific cgroup info
                return lxc_get_cgroup_entry(c, retv, inlen, key + 11);
        else if (strcmp(key, "lxc.utsname") == 0)
-               v = c->utsname->nodename;
+               v = c->utsname ? c->utsname->nodename : NULL;
        else if (strcmp(key, "lxc.console") == 0)
                v = c->console.path;
        else if (strcmp(key, "lxc.rootfs.mount") == 0)