From 32663b8b8948cc05f812ab82c1c7db2db3ddf717 Mon Sep 17 00:00:00 2001
From: Alistair Popple <alistair@popple.id.au>
Date: Wed, 30 Oct 2013 10:50:38 +1100
Subject: [PATCH] ibm emac: Fix locking for enable/disable eob irq

Calls to mal_enable_eob_irq perform a read-write-modify of a dcr to
enable device irqs which is protected by a spin lock. However calls to
mal_disable_eob_irq do not take the corresponding lock.

This patch resolves the problem by ensuring that calls to
mal_disable_eob_irq also take the lock.

Signed-off-by: Alistair Popple <alistair@popple.id.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
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