Bruce Evans f4675a30ed Don't follow null pointers if we somehow have a null devswitch entry
despite having a non-null cn_tab entry.  This case now works the same
as if there is no physical console, except i/o at the kernel printf
level may still work.  This frees drivers of physical console drivers
from the responsibility of attaching the device no matter what.
2000-01-25 09:20:08 +00:00
..