From 29aaee65bc28cc75281dc9fe0998cc5e10ac37f9 Mon Sep 17 00:00:00 2001
From: Anish Bhatt <anish@chelsio.com>
Date: Wed, 20 Aug 2014 13:44:06 -0700
Subject: [PATCH] cxgb4: Fix race condition in cleanup

There is a possible race condition when we unregister the PCI Driver and then
flush/destroy the global "workq". This could lead to situations where there
are tasks on the Work Queue with references to now deleted adapter data
structures. Instead, have per-adapter Work Queues which were instantiated and
torn down in init_one() and remove_one(), respectively.

v2: Remove unnecessary call to flush_workqueue() before destroy_workqueue()

Signed-off-by: Anish Bhatt <anish@chelsio.com>
Signed-off-by: Casey Leedom <leedom@chelsio.com>
Acked-by: Neil Horman <nhorman@tuxdriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
Reading git-format-patch failed