* [PATCH 5.0 207/346] cpufreq/pasemi: fix possible object reference leak
[not found] <20190530030540.363386121@linuxfoundation.org>
@ 2019-05-30 3:04 ` Greg Kroah-Hartman
2019-05-30 3:04 ` [PATCH 5.0 208/346] cpufreq: pmac32: " Greg Kroah-Hartman
2019-05-30 3:05 ` [PATCH 5.0 249/346] ASoC: fsl_utils: fix a leaked reference by adding missing of_node_put Greg Kroah-Hartman
2 siblings, 0 replies; 3+ messages in thread
From: Greg Kroah-Hartman @ 2019-05-30 3:04 UTC (permalink / raw)
To: linux-kernel
Cc: Sasha Levin, linux-pm, Greg Kroah-Hartman, Rafael J. Wysocki,
stable, Viresh Kumar, linuxppc-dev, Wen Yang
[ 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 75dfbd2a58ea6..c7710c149de85 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
^ permalink raw reply related [flat|nested] 3+ messages in thread
* [PATCH 5.0 208/346] cpufreq: pmac32: fix possible object reference leak
[not found] <20190530030540.363386121@linuxfoundation.org>
2019-05-30 3:04 ` [PATCH 5.0 207/346] cpufreq/pasemi: fix possible object reference leak Greg Kroah-Hartman
@ 2019-05-30 3:04 ` Greg Kroah-Hartman
2019-05-30 3:05 ` [PATCH 5.0 249/346] ASoC: fsl_utils: fix a leaked reference by adding missing of_node_put Greg Kroah-Hartman
2 siblings, 0 replies; 3+ messages in thread
From: Greg Kroah-Hartman @ 2019-05-30 3:04 UTC (permalink / raw)
To: linux-kernel
Cc: Sasha Levin, linux-pm, Greg Kroah-Hartman, Rafael J. Wysocki,
stable, Viresh Kumar, Paul Mackerras, linuxppc-dev, Wen Yang
[ Upstream commit 8d10dc28a9ea6e8c02e825dab28699f3c72b02d9 ]
The call to of_find_node_by_name 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/pmac32-cpufreq.c:557:2-8: ERROR: missing of_node_put; acquired a node pointer with refcount incremented on line 552, but without a corresponding object release within this function.
./drivers/cpufreq/pmac32-cpufreq.c:569:1-7: ERROR: missing of_node_put; acquired a node pointer with refcount incremented on line 552, but without a corresponding object release within this function.
./drivers/cpufreq/pmac32-cpufreq.c:598:1-7: ERROR: missing of_node_put; acquired a node pointer with refcount incremented on line 587, 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: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: linux-pm@vger.kernel.org
Cc: linuxppc-dev@lists.ozlabs.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/pmac32-cpufreq.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/cpufreq/pmac32-cpufreq.c b/drivers/cpufreq/pmac32-cpufreq.c
index 52f0d91d30c17..9b4ce2eb8222c 100644
--- a/drivers/cpufreq/pmac32-cpufreq.c
+++ b/drivers/cpufreq/pmac32-cpufreq.c
@@ -552,6 +552,7 @@ static int pmac_cpufreq_init_7447A(struct device_node *cpunode)
volt_gpio_np = of_find_node_by_name(NULL, "cpu-vcore-select");
if (volt_gpio_np)
voltage_gpio = read_gpio(volt_gpio_np);
+ of_node_put(volt_gpio_np);
if (!voltage_gpio){
pr_err("missing cpu-vcore-select gpio\n");
return 1;
@@ -588,6 +589,7 @@ static int pmac_cpufreq_init_750FX(struct device_node *cpunode)
if (volt_gpio_np)
voltage_gpio = read_gpio(volt_gpio_np);
+ of_node_put(volt_gpio_np);
pvr = mfspr(SPRN_PVR);
has_cpu_l2lve = !((pvr & 0xf00) == 0x100);
--
2.20.1
^ permalink raw reply related [flat|nested] 3+ messages in thread
* [PATCH 5.0 249/346] ASoC: fsl_utils: fix a leaked reference by adding missing of_node_put
[not found] <20190530030540.363386121@linuxfoundation.org>
2019-05-30 3:04 ` [PATCH 5.0 207/346] cpufreq/pasemi: fix possible object reference leak Greg Kroah-Hartman
2019-05-30 3:04 ` [PATCH 5.0 208/346] cpufreq: pmac32: " Greg Kroah-Hartman
@ 2019-05-30 3:05 ` Greg Kroah-Hartman
2 siblings, 0 replies; 3+ messages in thread
From: Greg Kroah-Hartman @ 2019-05-30 3:05 UTC (permalink / raw)
To: linux-kernel
Cc: Sasha Levin, alsa-devel, linuxppc-dev, Timur Tabi, Xiubo Li,
Greg Kroah-Hartman, Takashi Iwai, Liam Girdwood, stable,
Jaroslav Kysela, Nicolin Chen, Mark Brown, Fabio Estevam,
Wen Yang
[ Upstream commit c705247136a523488eac806bd357c3e5d79a7acd ]
The call to of_parse_phandle returns a node pointer with refcount
incremented thus it must be explicitly decremented after the last
usage.
Detected by coccinelle with the following warnings:
./sound/soc/fsl/fsl_utils.c:74:2-8: ERROR: missing of_node_put; acquired a node pointer with refcount incremented on line 38, but without a corresponding object release within this function.
Signed-off-by: Wen Yang <wen.yang99@zte.com.cn>
Cc: Timur Tabi <timur@kernel.org>
Cc: Nicolin Chen <nicoleotsuka@gmail.com>
Cc: Xiubo Li <Xiubo.Lee@gmail.com>
Cc: Fabio Estevam <festevam@gmail.com>
Cc: Liam Girdwood <lgirdwood@gmail.com>
Cc: Mark Brown <broonie@kernel.org>
Cc: Jaroslav Kysela <perex@perex.cz>
Cc: Takashi Iwai <tiwai@suse.com>
Cc: alsa-devel@alsa-project.org
Cc: linuxppc-dev@lists.ozlabs.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
sound/soc/fsl/fsl_utils.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/sound/soc/fsl/fsl_utils.c b/sound/soc/fsl/fsl_utils.c
index 9981668ab5909..040d06b89f00a 100644
--- a/sound/soc/fsl/fsl_utils.c
+++ b/sound/soc/fsl/fsl_utils.c
@@ -71,6 +71,7 @@ int fsl_asoc_get_dma_channel(struct device_node *ssi_np,
iprop = of_get_property(dma_np, "cell-index", NULL);
if (!iprop) {
of_node_put(dma_np);
+ of_node_put(dma_channel_np);
return -EINVAL;
}
*dma_id = be32_to_cpup(iprop);
--
2.20.1
^ permalink raw reply related [flat|nested] 3+ messages in thread
end of thread, other threads:[~2019-05-30 3:29 UTC | newest]
Thread overview: 3+ messages (download: mbox.gz / follow: Atom feed)
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[not found] <20190530030540.363386121@linuxfoundation.org>
2019-05-30 3:04 ` [PATCH 5.0 207/346] cpufreq/pasemi: fix possible object reference leak Greg Kroah-Hartman
2019-05-30 3:04 ` [PATCH 5.0 208/346] cpufreq: pmac32: " Greg Kroah-Hartman
2019-05-30 3:05 ` [PATCH 5.0 249/346] ASoC: fsl_utils: fix a leaked reference by adding missing of_node_put Greg Kroah-Hartman
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