tree 023d6bfc15ba192c1a92caab3ff7525a84e409fc
parent 41d5e59c1299f27983977bcfe3b360600996051c
author Dan Williams <dan.j.williams@intel.com> 1231267101 -0700
committer Dan Williams <dan.j.williams@intel.com> 1231267101 -0700

dmaengine: use idr for registering dma device numbers

This brings some predictability to dma device numbers, i.e. an rmmod/insmod
cycle may now result in /sys/class/dma/dma0chan0 being restored rather than
/sys/class/dma/dma1chan0 appearing.

Cc: Maciej Sosnowski <maciej.sosnowski@intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>