From b3fe628da2898cf1387105026dfed551ecc25de5 Mon Sep 17 00:00:00 2001
From: Bart Van Assche <bvanassche@acm.org>
Date: Fri, 14 Mar 2014 13:54:11 +0100
Subject: [PATCH] IB/srp: Fix a race condition between failing I/O and I/O
 completion

Avoid that srp_terminate_io() can access req->scmnd after it has been
cleared by the I/O completion code. Do this by protecting req->scmnd
accesses from srp_terminate_io() via locking

Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Acked-by: Sagi Grimberg <sagig@mellanox.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
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Reading git-format-patch failed