From: Nicholas Bellinger <nab@linux-iscsi.org>
Date: Wed, 9 Feb 2011 23:35:04 +0000 (-0800)
Subject: [SCSI] target: Fix SCF_SCSI_CONTROL_SG_IO_CDB breakage
X-Git-Tag: v2.6.38-rc6~32^2~6
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=e63af95888894af6ca4112dc90083d1dff0fec29;p=pandora-kernel.git

[SCSI] target: Fix SCF_SCSI_CONTROL_SG_IO_CDB breakage

This patch fixes a bug introduced during the v4 control CDB emulation
refactoring that broke SCF_SCSI_CONTROL_SG_IO_CDB operation within
transport_map_control_cmd_to_task().  It moves the BUG_ON() into
transport_do_se_mem_map() after the TRANSPORT(dev)->do_se_mem_map()
RAMDISK_DR special case, and adds the proper struct se_mem assignment
when !list_empty() for normal non RAMDISK_DR backend device cases.

Reported-by: Kai-Thorsten Hambrecht <kai@hambrecht.org>
Signed-off-by: Nicholas A. Bellinger <nab@linux-iscsi.org>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
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