From: Stephen M. Cameron <scameron@beardog.cce.hp.com>
Date: Thu, 3 Jul 2014 15:18:14 +0000 (-0500)
Subject: hpsa: fix 6-byte READ/WRITE with 0 length data xfer
X-Git-Tag: omap-for-v3.17/fixes-against-rc2~143^2~41
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=3fa89a04e064e586df4ed3208a8e62012a65b17f;p=pandora-kernel.git

hpsa: fix 6-byte READ/WRITE with 0 length data xfer

a 6-byte READ/WRITE CDB with a 0 block data transfer really
means a 256 block data transfer.  The RAID mapping code failed
to handle this case.  For 10/12/16 byte READ/WRITEs, 0 just means
no data should be transferred, and should not trigger BUG_ON.

Signed-off-by: Stephen M. Cameron <scameron@beardog.cce.hp.com>
Reported-by: Robert Elliott <elliott@hp.com>
Reviewed-by: Robert Elliott <elliott@hp.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
---

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