From: Nicholas Bellinger <nab@linux-iscsi.org>
Date: Sun, 18 Mar 2012 00:40:23 +0000 (-0700)
Subject: loopback: Fix transport_generic_allocate_tasks error handling
X-Git-Tag: v3.4-rc1~146^2~1
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=ee9b866a3696ae434418348e2f499c41841366d4;p=pandora-kernel.git

loopback: Fix transport_generic_allocate_tasks error handling

This patch addresses a tcm_loop bug with transport_generic_allocate_tasks()
return checking in tcm_loop_submission_work() where other non zero return
codes (including -EBUSY for reservation conflicts) are incorrectly falling
through to transport_generic_map_mem_to_cmd() -> transport_handle_cdb_direct().

This bug was introduced into target-pending/for-next-merge with the following
for-3.4 commit:

commit 16786454acec0e0e55e32d508b3058b32c1f23f3
Author: Christoph Hellwig <hch@infradead.org>
Date:   Thu Feb 2 17:04:42 2012 -0500

    tcm_loop: switch to using transport_handle_cdb_direct

Cc: Christoph Hellwig <hch@lst.de>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
---

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