I just fixed a typo in a register definition used in the bha (BusLogic
scsi) driver's probe function. It works on a bha (956c, pci) here.

The register in question is only  referenced during probe. If your
bha driver continues to be probed and attached,  then this
change wont' affect anything.

On the other hand, if your bha device stop being probed in -current,
(or worse, aha devices start being attached as bha), then this change is
quite likely what broke them.

I don't have any aha devices, or other bha devices, to test, or I would.