From: Albert Lee <albertcc@tw.ibm.com>
Date: Thu, 15 Nov 2007 01:35:46 +0000 (+0900)
Subject: libata: workaround DRQ=1 ERR=1 for ATAPI tape drives
X-Git-Tag: v2.6.24-rc4~102^2~18
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=2d3b8eea7f2fbafd5d779cc92f7aedbd1ef575e9;p=pandora-kernel.git

libata: workaround DRQ=1 ERR=1 for ATAPI tape drives

After an error condition, some ATAPI tape drives set DRQ=1 together
with ERR=1 when asking the host to transfer the CDB of the next packet
command (i.e. request sense).  This patch, a revised version of
Alan/Mark's previous patch, adds ATA_HORKAGE_STUCK_ERR to workaround
the problem by ignoring the ERR bit and proceed sending the CDB.

Signed-off-by: Albert Lee <albertcc@tw.ibm.com>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: Mark Lord <liml@rtr.ca>
Signed-off-by: Tejun Heo <htejun@gmail.com>
---

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