From: Tejun Heo <htejun@gmail.com>
Date: Sat, 24 Feb 2007 13:30:36 +0000 (+0900)
Subject: sata_sil: ignore and clear spurious IRQs while executing commands by polling
X-Git-Tag: v2.6.21-rc2~25^2~11
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=e2f8fb72144a9f38d44ccf3f939e939392eda659;p=pandora-kernel.git

sata_sil: ignore and clear spurious IRQs while executing commands by polling

sata_sil used to trigger HSM error if IRQ occurs during polling
command.  This didn't matter because polling wasn't used in sata_sil.
However, as of 2.6.20, all IDENTIFYs are performed by polling and
device detection sometimes fails due to spurious IRQ.  This patch
makes sata_sil ignore and clear spurious IRQ while executing commands
by polling.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
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