From: Stephen M. Cameron <scameron@beardog.cce.hp.com>
Date: Thu, 21 Jul 2011 18:16:05 +0000 (-0500)
Subject: [SCSI] hpsa: do not attempt to read from a write-only register
X-Git-Tag: v3.1-rc1~113^2~29
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=fec62c368b9c8b05d5124ca6c3b8336b537f26f3;p=pandora-kernel.git

[SCSI] hpsa: do not attempt to read from a write-only register

Most smartarrays tolerate it, but a few new ones don't.
Without this change some newer Smart Arrays will lock up
and i/o will grind to a halt.

Signed-off-by: Stephen M. Cameron <scameron@beardog.cce.hp.com>
Cc: stable@kernel.org
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
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