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From: Dan Carpenter <dan.carpenter@oracle.com>
To: "Kukjin Kim" <kgene@kernel.org>, "Heiko Stübner" <heiko@sntech.de>
Cc: Krzysztof Kozlowski <krzk@kernel.org>,
	Javier Martinez Canillas <javier@osg.samsung.com>,
	"Rafael J. Wysocki" <rjw@rjwysocki.net>,
	Viresh Kumar <viresh.kumar@linaro.org>,
	linux-samsung-soc@vger.kernel.org, linux-pm@vger.kernel.org,
	kernel-janitors@vger.kernel.org
Subject: [patch] cpufreq: s3c2416: double free on driver init error path
Date: Tue, 07 Feb 2017 13:19:06 +0000	[thread overview]
Message-ID: <20170207131906.GD27416@mwanda> (raw)

The "goto err_armclk;" error path already does a clk_put(s3c_freq->hclk);
so this is a double free.

Fixes: 34ee55075265 ("[CPUFREQ] Add S3C2416/S3C2450 cpufreq driver")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>

diff --git a/drivers/cpufreq/s3c2416-cpufreq.c b/drivers/cpufreq/s3c2416-cpufreq.c
index d6d425773fa4..5b2db3c6568f 100644
--- a/drivers/cpufreq/s3c2416-cpufreq.c
+++ b/drivers/cpufreq/s3c2416-cpufreq.c
@@ -400,7 +400,6 @@ static int s3c2416_cpufreq_driver_init(struct cpufreq_policy *policy)
 	rate = clk_get_rate(s3c_freq->hclk);
 	if (rate < 133 * 1000 * 1000) {
 		pr_err("cpufreq: HCLK not at 133MHz\n");
-		clk_put(s3c_freq->hclk);
 		ret = -EINVAL;
 		goto err_armclk;
 	}

WARNING: multiple messages have this Message-ID (diff)
From: Dan Carpenter <dan.carpenter@oracle.com>
To: "Kukjin Kim" <kgene@kernel.org>, "Heiko Stübner" <heiko@sntech.de>
Cc: Krzysztof Kozlowski <krzk@kernel.org>,
	Javier Martinez Canillas <javier@osg.samsung.com>,
	"Rafael J. Wysocki" <rjw@rjwysocki.net>,
	Viresh Kumar <viresh.kumar@linaro.org>,
	linux-samsung-soc@vger.kernel.org, linux-pm@vger.kernel.org,
	kernel-janitors@vger.kernel.org
Subject: [patch] cpufreq: s3c2416: double free on driver init error path
Date: Tue, 7 Feb 2017 16:19:06 +0300	[thread overview]
Message-ID: <20170207131906.GD27416@mwanda> (raw)

The "goto err_armclk;" error path already does a clk_put(s3c_freq->hclk);
so this is a double free.

Fixes: 34ee55075265 ("[CPUFREQ] Add S3C2416/S3C2450 cpufreq driver")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>

diff --git a/drivers/cpufreq/s3c2416-cpufreq.c b/drivers/cpufreq/s3c2416-cpufreq.c
index d6d425773fa4..5b2db3c6568f 100644
--- a/drivers/cpufreq/s3c2416-cpufreq.c
+++ b/drivers/cpufreq/s3c2416-cpufreq.c
@@ -400,7 +400,6 @@ static int s3c2416_cpufreq_driver_init(struct cpufreq_policy *policy)
 	rate = clk_get_rate(s3c_freq->hclk);
 	if (rate < 133 * 1000 * 1000) {
 		pr_err("cpufreq: HCLK not at 133MHz\n");
-		clk_put(s3c_freq->hclk);
 		ret = -EINVAL;
 		goto err_armclk;
 	}

             reply	other threads:[~2017-02-07 13:19 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-02-07 13:19 Dan Carpenter [this message]
2017-02-07 13:19 ` [patch] cpufreq: s3c2416: double free on driver init error path Dan Carpenter
2017-02-07 20:29 ` Krzysztof Kozlowski
2017-02-07 20:29   ` Krzysztof Kozlowski
2017-02-08  3:24 ` Viresh Kumar
2017-02-08  3:36   ` Viresh Kumar
2017-02-09 12:44 ` Heiko Stübner
2017-02-09 12:44   ` Heiko Stübner

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