K 10
svn:author
V 6
adrian
K 8
svn:date
V 27
2012-08-29T16:58:51.528703Z
K 7
svn:log
V 365
There's no nede to allocate a DMA map just before calling bus_dmamem_alloc().

In fact, bus_dmamem_alloc() happily NULLs the dmat pointer passed in,
before replacing it with its own.

This fixes a MIPS crash when kldload'ing if_ath/if_ath_pci -
bus_dmamap_destroy() was passed in a NULL dmat pointer and was doing
all kinds of very bad things.

Reviewed by:	scottl

END