From: Sreekanth Reddy <sreekanth.reddy@avagotech.com>
Date: Fri, 12 Sep 2014 10:05:33 +0000 (+0530)
Subject: mpt3sas, mpt2sas: fix scsi_add_host error handling problems in _scsih_probe
X-Git-Tag: fixes-for-v3.18-merge-window~25^2^2~114
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=b65f1d4da7df44835bd0a2452332e253a5c66d9b;p=pandora-kernel.git

mpt3sas, mpt2sas: fix scsi_add_host error handling problems in _scsih_probe

In _scsih_probe, propagate the return value from scsi_add_host.
In mpt3sas, avoid calling list_del twice if that returns an
error, which causes list_del corruption warnings if an error
is returned.

Tested with blk-mq and scsi-mq patches to properly cleanup
from and propagate blk_mq_init_rq_map errors.

Signed-off-by: Robert Elliott <elliott@hp.com>
Acked-by: Sreekanth Reddy <Sreekanth.Reddy@avagotech.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
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