csjp 0dd5d190ee Pickup I/O lock in aac_get_bus_info, as this code will call
aac_alloc_sync_fib(). aac_alloc_sync_fib() will assert that the I/O locks
are held. This fixes a panic on system boot up  when the aac(4) device's
bus_generic_attach() routine is called.

Reviewed by:	scottl
2005-10-31 00:12:19 +00:00
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