From b9f85b1d32cc55b20984149eacb2e6f4c3aedca3 Mon Sep 17 00:00:00 2001
From: Laurence Oberman <loberman@redhat.com>
Date: Tue, 25 Nov 2014 09:16:42 -0500
Subject: [PATCH] qla2xxx: fix race in handling rport deletion during recovery
 causes panic

When we have an rport disconnect we race during rport deletion and
re-connection resulting in a panic.  When we do this, we call
fc_remote_port_del() just before we do the calls to re-establish the
session with the FC transport with fc_remote_port_add() and then
fc_remote_port_rolechg().

If we remove the call to fc_remote_port_del() before re-establishing
the connection this prevents the race.  This patch has resolved this
for multiple customers via test kernels.

Suggested by Chad Dupuis, implemented and tested by Laurence Oberman.

Signed-off-by: Laurence Oberman <loberman@redhat.com>
Acked-by: Chad Dupuis <chad.dupuis@qlogic.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
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