kib c418d575d3 Fix use of busdma(9) KPI in ahci(4).
Use BUS_DMA_NOWAIT for loads at initialization time.
Report actual numeric error code if any problem occurs at the
initialization.

Reported and tested by:	pho
Reviewed by:	mav
Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
Differential revision:	https://reviews.freebsd.org/D18741
2019-01-07 02:39:40 +00:00
..
2019-01-07 02:39:40 +00:00