From: Christoph Hellwig <hch@lst.de>
Date: Sun, 14 Sep 2014 02:41:16 +0000 (-0700)
Subject: scsi_dh: get module reference outside of device handler
X-Git-Tag: omap-for-v3.19/fixes-for-merge-window~21^2~1^2~23
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=27c888f0bb889693c6a3b6d39eba3265c16c072f;p=pandora-kernel.git

scsi_dh: get module reference outside of device handler

We need to grab a reference to the module before calling the attach
routines to avoid a small race vs module removal.  It also cleans up
the code significantly as a side effect.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Mike Christie <michaelc@cs.wisc.edu>
Reviewed-by: Hannes Reinecke <hare@suse.de>
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