console_first
if (hlist_empty(&console_list) || !console_first()->device ||
console_first()->flags & CON_BOOT) {
console_srcu_write_flags(console_first(), console_first()->flags & ~CON_CONSDEV);
console_srcu_write_flags(console_first(), console_first()->flags | CON_CONSDEV);
cur_pref_con = console_first();