K 10
svn:author
V 7
thompsa
K 8
svn:date
V 27
2008-07-28T16:19:16.183677Z
K 7
svn:log
V 190
MFC r178978

 Don't let hacksync() call bus_dmamap_sync(9) on DMA maps which
 are not initialized. This fixes a panic on sparc64 where calling
 bus_dmamap_sync(9) on NULL DMA maps is fatal.

END