From: Dan Williams <dan.j.williams@intel.com>
Date: Tue, 6 Jan 2009 18:38:15 +0000 (-0700)
Subject: dmatest: convert to dma_request_channel
X-Git-Tag: v2.6.29-rc1~39^2~14
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=33df8ca068123457db56c316946a3c0e4ef787d6;p=pandora-kernel.git

dmatest: convert to dma_request_channel

Replace the client registration infrastructure with a custom loop to
poll for channels.  Once dma_request_channel returns NULL stop asking
for channels.  A userspace side effect of this change if that loading
the dmatest module before loading a dma driver will result in no
channels being found, previously dmatest would get a callback.  To
facilitate testing in the built-in case dmatest_init is marked as a
late_initcall.  Another side effect is that channels under test can not
be used for any other purpose.

Cc: Haavard Skinnemoen <haavard.skinnemoen@atmel.com>
Reviewed-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
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