From: Dan Williams <dan.j.williams@intel.com>
Date: Tue, 28 Jul 2009 21:44:04 +0000 (-0700)
Subject: ioat1: move descriptor allocation from submit to prep
X-Git-Tag: v2.6.32-rc1~60^2^2~47
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=a0587bcf3e64029a4da2a5666cad18df38db0d56;p=pandora-kernel.git

ioat1: move descriptor allocation from submit to prep

The async_tx api assumes that after a successful ->prep a subsequent
->submit will not fail due to a lack of resources.

This also fixes a bug in the allocation failure case.  Previously the
descriptors allocated prior to the allocation failure would not be
returned to the free list.

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