dmaengine: fail device registration if channel registration fails

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Atsushi points out:
"If alloc_percpu or kzalloc failed, chan_id does not match with its
position in device->channels list.

And above "continue" looks buggy anyway.  Keeping incomplete channels
in device->channels list looks very dangerous..."

Also, fix up leakage of idr_ref in the idr_pre_get() and channel init
fail cases.

Reported-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>

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This commit is contained in:

Dan Williams 2009-03-25 09:13:23 -07:00

parent 041b62374c

commit 257b17ca03

1 changed files with 39 additions and 12 deletions

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drivers/dma/dmaengine.c

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