dmaengine: use idr for registering dma device numbers

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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>

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This commit is contained in:

Dan Williams 2009-01-06 11:38:21 -07:00

parent 41d5e59c12

commit 864498aaa9

2 changed files with 29 additions and 2 deletions

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27

drivers/dma/dmaengine.c

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4

include/linux/dmaengine.h

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