From 4988bb4a3f0b3b0273c21c6c52f2730f55693b42 Mon Sep 17 00:00:00 2001
From: Erik Hugne <erik.hugne@ericsson.com>
Date: Wed, 3 Dec 2014 16:58:40 +0100
Subject: [PATCH] tipc: fix missing spinlock init and nullptr oops

commit 908344cdda80 ("tipc: fix bug in multicast congestion
handling") introduced two bugs with the bclink wakeup
function. This commit fixes the missing spinlock init for the
waiting_sks list. We also eliminate the race condition
between the waiting_sks length check/dequeue operations in
tipc_bclink_wakeup_users by simply removing the redundant
length check.

Signed-off-by: Erik Hugne <erik.hugne@ericsson.com>
Acked-by: Tero Aho <Tero.Aho@coriant.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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