[PATCH] sh-clkfwk Safer resume from hibenration

[Francesco VIRLINZI <francesco.virlinzi@st.com>]

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From 444e5623bfb9ceae22b6190dfcc003cb19efcf71 Mon Sep 17 00:00:00 2001
From: Francesco Virlinzi <francesco.virlinzi@st.com>
Date: Fri, 13 Mar 2009 08:39:26 +0100
Subject: [PATCH] sh: clkfwk: Safer resume from hibenration

This patch fixes a possible problem in the resume from
hibenration. It temporaneally saves the clk->rate on the
stack to avoid any possible change during the clk->set_parent(..)
call

Signed-off-by: Francesco Virlinzi <francesco.virlinzi@st.com>
---
 arch/sh/kernel/cpu/clock.c |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)

diff --git a/arch/sh/kernel/cpu/clock.c b/arch/sh/kernel/cpu/clock.c
index 3209a87..e2d2451 100644
--- a/arch/sh/kernel/cpu/clock.c
+++ b/arch/sh/kernel/cpu/clock.c
@@ -372,12 +372,13 @@ static int clks_sysdev_suspend(struct sys_device *dev, pm_message_t state)
 		if (prev_state.event == PM_EVENT_FREEZE) {
 			list_for_each_entry(clkp, &clock_list, node)
 				if (likely(clkp->ops)) {
+					unsigned long rate = clkp->rate;
 					if (likely(clkp->ops->set_parent))
 						clkp->ops->set_parent(clkp,
 							clkp->parent);
 					if (likely(clkp->ops->set_rate))
 						clkp->ops->set_rate(clkp,
-							clkp->rate, NO_CHANGE);
+							rate, NO_CHANGE);
 					else if (likely(clkp->ops->recalc))
 						clkp->ops->recalc(clkp);
 					}
-- 
1.5.6.6