From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: linux-kernel@vger.kernel.org
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
stable@vger.kernel.org, Wen Yang <wen.yang99@zte.com.cn>,
"Rafael J. Wysocki" <rjw@rjwysocki.net>,
Viresh Kumar <viresh.kumar@linaro.org>,
linuxppc-dev@lists.ozlabs.org, linux-pm@vger.kernel.org,
Sasha Levin <sashal@kernel.org>
Subject: [PATCH 4.4 145/241] cpufreq/pasemi: fix possible object reference leak
Date: Sun, 9 Jun 2019 18:41:27 +0200 [thread overview]
Message-ID: <20190609164151.967723685@linuxfoundation.org> (raw)
In-Reply-To: <20190609164147.729157653@linuxfoundation.org>
[ Upstream commit a9acc26b75f652f697e02a9febe2ab0da648a571 ]
The call to of_get_cpu_node returns a node pointer with refcount
incremented thus it must be explicitly decremented after the last
usage.
Detected by coccinelle with the following warnings:
./drivers/cpufreq/pasemi-cpufreq.c:212:1-7: ERROR: missing of_node_put; acquired a node pointer with refcount incremented on line 147, but without a corresponding object release within this function.
./drivers/cpufreq/pasemi-cpufreq.c:220:1-7: ERROR: missing of_node_put; acquired a node pointer with refcount incremented on line 147, but without a corresponding object release within this function.
Signed-off-by: Wen Yang <wen.yang99@zte.com.cn>
Cc: "Rafael J. Wysocki" <rjw@rjwysocki.net>
Cc: Viresh Kumar <viresh.kumar@linaro.org>
Cc: linuxppc-dev@lists.ozlabs.org
Cc: linux-pm@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/cpufreq/pasemi-cpufreq.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/cpufreq/pasemi-cpufreq.c b/drivers/cpufreq/pasemi-cpufreq.c
index 35dd4d7ffee08..58c933f483004 100644
--- a/drivers/cpufreq/pasemi-cpufreq.c
+++ b/drivers/cpufreq/pasemi-cpufreq.c
@@ -146,6 +146,7 @@ static int pas_cpufreq_cpu_init(struct cpufreq_policy *policy)
cpu = of_get_cpu_node(policy->cpu, NULL);
+ of_node_put(cpu);
if (!cpu)
goto out;
--
2.20.1
next prev parent reply other threads:[~2019-06-09 17:09 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20190609164147.729157653@linuxfoundation.org>
2019-06-09 16:40 ` [PATCH 4.4 069/241] power: supply: sysfs: prevent endless uevent loop with CONFIG_POWER_SUPPLY_DEBUG Greg Kroah-Hartman
2019-06-09 16:41 ` [PATCH 4.4 144/241] cpufreq: ppc_cbe: fix possible object reference leak Greg Kroah-Hartman
2019-06-09 16:41 ` Greg Kroah-Hartman [this message]
2019-06-09 16:41 ` [PATCH 4.4 146/241] cpufreq: pmac32: " Greg Kroah-Hartman
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