linux-kernel - Re: [PATCH 09/14] cpufreq: cpu0: Move per-cluster initialization code to ->init()

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Date:	Thu, 3 Jul 2014 07:41:34 +0530
From:	Viresh Kumar <viresh.kumar@...aro.org>
To:	Stephen Boyd <sboyd@...eaurora.org>
Cc:	"Rafael J. Wysocki" <rjw@...ysocki.net>,
	Shawn Guo <shawn.guo@...aro.org>,
	Lists linaro-kernel <linaro-kernel@...ts.linaro.org>,
	"linux-pm@...r.kernel.org" <linux-pm@...r.kernel.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Arvind Chauhan <arvind.chauhan@....com>,
	linux-arm-msm@...r.kernel.org, Sachin Kamat <spk.linux@...il.com>,
	Thomas P Abraham <thomas.ab@...sung.com>,
	Nishanth Menon <nm@...com>, Tomasz Figa <t.figa@...sung.com>
Subject: Re: [PATCH 09/14] cpufreq: cpu0: Move per-cluster initialization code
 to ->init()

On 3 July 2014 06:13, Stephen Boyd <sboyd@...eaurora.org> wrote:
> drivers/cpufreq/cpufreq-generic.c:313:13: warning: 'cdev' may be used
> uninitialized in this function [-Wmaybe-uninitialized]
>
> So I guess we should initialize it to NULL?

I somehow didn't got this, I checked again. I have fixed it this way:

diff --git a/drivers/cpufreq/cpufreq-cpu0.c b/drivers/cpufreq/cpufreq-cpu0.c
index e6dc8ea..05a18bd 100644
--- a/drivers/cpufreq/cpufreq-cpu0.c
+++ b/drivers/cpufreq/cpufreq-cpu0.c
@@ -240,10 +240,11 @@ static int cpu0_cpufreq_init(struct
cpufreq_policy *policy)
                        dev_err(cpu_dev,
                                "running cpufreq without cooling device: %ld\n",
                                PTR_ERR(cdev));
+               else
+                       priv->cdev = cdev;
        }
        of_node_put(np);

-       priv->cdev = cdev;
        priv->cpu_dev = cpu_dev;
        priv->cpu_reg = cpu_reg;
        policy->driver_data = priv;
--
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