From 1dacb395d68a14825ee48c0843335e3181aea675 Mon Sep 17 00:00:00 2001
From: Amos Kong <akong@redhat.com>
Date: Mon, 8 Dec 2014 16:50:36 +0800
Subject: [PATCH] hwrng: move some code out mutex_lock for avoiding underlying
 deadlock

In next patch, we use reference counting for each struct hwrng,
changing reference count also needs to take mutex_lock. Before
releasing the lock, if we try to stop a kthread that waits to
take the lock to reduce the referencing count, deadlock will
occur.

Signed-off-by: Amos Kong <akong@redhat.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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