From: Dan Williams <dan.j.williams@intel.com>
Date: Fri, 21 Sep 2007 20:27:04 +0000 (-0700)
Subject: async_tx: fix dma_wait_for_async_tx
X-Git-Tag: v2.6.23-rc8~2^2~1
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=6247cdc2cd334dad0ea5428245a7d8f4b075f21e;p=pandora-kernel.git

async_tx: fix dma_wait_for_async_tx

Fix dma_wait_for_async_tx to not loop forever in the case where a
dependency chain is longer than two entries.  This condition will not
happen with current in-kernel drivers, but fix it for future drivers.

Found-by: Saeed Bishara <saeed.bishara@gmail.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
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