From: Mike Christie <michaelc@cs.wisc.edu>
Date: Wed, 6 Mar 2013 04:40:24 +0000 (-0600)
Subject: [SCSI] scsi_dh_alua: fix stpg sense handling
X-Git-Tag: omap-for-v3.10/dt-fixes-for-merge-window~95^2~34
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=27db682bf07fdc105af38827dbbd67d6f0a4ae04;p=pandora-kernel.git

[SCSI] scsi_dh_alua: fix stpg sense handling

For the stpg_endio path we are not evaluating the sense. The bug
is that

1. The error value is set to -EIO when there is sense, so we hit the first
error check and always return SCSI_DH_IO.

2. h->senselen is set to zero in submit_stpg. It is not later set to
req->sense_len like in the synchrounous exection paths, so we must
check the req->sense_len field.

Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
---

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