From: Tejun Heo <htejun@gmail.com>
Date: Fri, 11 May 2007 12:46:51 +0000 (+0200)
Subject: libata: give devices one last chance even if recovery failed with -EINVAL
X-Git-Tag: v2.6.22-rc1~19^2~8
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=8575b814097af648dad284bd3087875a11b13d18;p=pandora-kernel.git

libata: give devices one last chance even if recovery failed with -EINVAL

After certain errors, some devices report complete garbage on
IDENTIFY.  This can cause ata_dev_read_id() to fail with -EINVAL
resulting in immediate disabling of the device.  Give the device one
last chance after -EINVAL to allow recovery from such situations.  As
-EINVAL is triggered very rarely, this shouldn't cause any noticeable
affect on more common error paths.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Cc: Harald Dunkel <harald.dunkel@t-online.de>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
---

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