From: Jeff Garzik <jeff@garzik.org>
Date: Tue, 7 Apr 2009 23:13:15 +0000 (-0400)
Subject: [libata] EH: freeze port before aborting commands
X-Git-Tag: v2.6.32-rc1~717^2~24
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=54c38444fad6a99b4b19512f8f0055d69115e69e;p=pandora-kernel.git

[libata] EH: freeze port before aborting commands

Call the ->freeze() hook before aborting qc's, because some hardware
requires special handling prior to accessing the taskfile registers
(for diagnosis/analysis/reset).  Most notably, hardware may wish to
disable the DMA engine or interrupts in the ->freeze() hook.

Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
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