From f9fb360cb3440fb7d22ad7061de4e99235a97e1c Mon Sep 17 00:00:00 2001
From: Paul Mundt <lethal@linux-sh.org>
Date: Thu, 10 May 2012 15:15:08 +0900
Subject: [PATCH] watchdog: shwdt: Migrate to per-device locking.

Presently we've been using global locking for everything. Push the
locking down to the per-device level in preparation for per-CPU
watchdogs.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
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