* [PATCH RESEND 1/2] soc: imx: soc-imx8: Avoid unnecessary of_node_put() in error handling
@ 2019-05-24 5:51 ` Anson.Huang
0 siblings, 0 replies; 6+ messages in thread
From: Anson.Huang @ 2019-05-24 5:51 UTC (permalink / raw)
To: shawnguo, s.hauer, kernel, festevam, leonard.crestez, abel.vesa,
viresh.kumar, linux-arm-kernel, linux-kernel, hyc.nju
Cc: Linux-imx
From: Anson Huang <Anson.Huang@nxp.com>
of_node_put() is called after of_match_node() successfully called,
then in the following error handling, of_node_put() is called again
which is unnecessary, this patch adjusts the location of of_node_put()
to avoid such scenario.
Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Reviewed-by: Leonard Crestez <leonard.crestez@nxp.com>
---
drivers/soc/imx/soc-imx8.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/soc/imx/soc-imx8.c b/drivers/soc/imx/soc-imx8.c
index 02988bd..d5badde 100644
--- a/drivers/soc/imx/soc-imx8.c
+++ b/drivers/soc/imx/soc-imx8.c
@@ -115,8 +115,6 @@ static int __init imx8_soc_init(void)
if (!id)
goto free_soc;
- of_node_put(root);
-
data = id->data;
if (data) {
soc_dev_attr->soc_id = data->name;
@@ -135,6 +133,8 @@ static int __init imx8_soc_init(void)
if (IS_ENABLED(CONFIG_ARM_IMX_CPUFREQ_DT))
platform_device_register_simple("imx-cpufreq-dt", -1, NULL, 0);
+ of_node_put(root);
+
return 0;
free_rev:
--
2.7.4
^ permalink raw reply related [flat|nested] 6+ messages in thread
* [PATCH RESEND 1/2] soc: imx: soc-imx8: Avoid unnecessary of_node_put() in error handling
@ 2019-05-24 5:51 ` Anson.Huang
0 siblings, 0 replies; 6+ messages in thread
From: Anson.Huang @ 2019-05-24 5:51 UTC (permalink / raw)
To: shawnguo, s.hauer, kernel, festevam, leonard.crestez, abel.vesa,
viresh.kumar, linux-arm-kernel, linux-kernel, hyc.nju
Cc: Linux-imx
From: Anson Huang <Anson.Huang@nxp.com>
of_node_put() is called after of_match_node() successfully called,
then in the following error handling, of_node_put() is called again
which is unnecessary, this patch adjusts the location of of_node_put()
to avoid such scenario.
Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Reviewed-by: Leonard Crestez <leonard.crestez@nxp.com>
---
drivers/soc/imx/soc-imx8.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/soc/imx/soc-imx8.c b/drivers/soc/imx/soc-imx8.c
index 02988bd..d5badde 100644
--- a/drivers/soc/imx/soc-imx8.c
+++ b/drivers/soc/imx/soc-imx8.c
@@ -115,8 +115,6 @@ static int __init imx8_soc_init(void)
if (!id)
goto free_soc;
- of_node_put(root);
-
data = id->data;
if (data) {
soc_dev_attr->soc_id = data->name;
@@ -135,6 +133,8 @@ static int __init imx8_soc_init(void)
if (IS_ENABLED(CONFIG_ARM_IMX_CPUFREQ_DT))
platform_device_register_simple("imx-cpufreq-dt", -1, NULL, 0);
+ of_node_put(root);
+
return 0;
free_rev:
--
2.7.4
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
^ permalink raw reply related [flat|nested] 6+ messages in thread
* [PATCH RESEND 2/2] soc: imx: soc-imx8: Correct return value of error handle
2019-05-24 5:51 ` Anson.Huang
@ 2019-05-24 5:51 ` Anson.Huang
-1 siblings, 0 replies; 6+ messages in thread
From: Anson.Huang @ 2019-05-24 5:51 UTC (permalink / raw)
To: shawnguo, s.hauer, kernel, festevam, leonard.crestez, abel.vesa,
viresh.kumar, linux-arm-kernel, linux-kernel, hyc.nju
Cc: Linux-imx
From: Anson Huang <Anson.Huang@nxp.com>
Current implementation of i.MX8 SoC driver returns -ENODEV
for all cases of error during initialization, this is incorrect.
This patch fixes them using correct return value according
to different errors.
Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Reviewed-by: Leonard Crestez <leonard.crestez@nxp.com>
---
drivers/soc/imx/soc-imx8.c | 16 +++++++++++-----
1 file changed, 11 insertions(+), 5 deletions(-)
diff --git a/drivers/soc/imx/soc-imx8.c b/drivers/soc/imx/soc-imx8.c
index d5badde..2183edf 100644
--- a/drivers/soc/imx/soc-imx8.c
+++ b/drivers/soc/imx/soc-imx8.c
@@ -102,7 +102,7 @@ static int __init imx8_soc_init(void)
soc_dev_attr = kzalloc(sizeof(*soc_dev_attr), GFP_KERNEL);
if (!soc_dev_attr)
- return -ENODEV;
+ return -ENOMEM;
soc_dev_attr->family = "Freescale i.MX";
@@ -112,8 +112,10 @@ static int __init imx8_soc_init(void)
goto free_soc;
id = of_match_node(imx8_soc_match, root);
- if (!id)
+ if (!id) {
+ ret = -ENODEV;
goto free_soc;
+ }
data = id->data;
if (data) {
@@ -123,12 +125,16 @@ static int __init imx8_soc_init(void)
}
soc_dev_attr->revision = imx8_revision(soc_rev);
- if (!soc_dev_attr->revision)
+ if (!soc_dev_attr->revision) {
+ ret = -ENOMEM;
goto free_soc;
+ }
soc_dev = soc_device_register(soc_dev_attr);
- if (IS_ERR(soc_dev))
+ if (IS_ERR(soc_dev)) {
+ ret = PTR_ERR(soc_dev);
goto free_rev;
+ }
if (IS_ENABLED(CONFIG_ARM_IMX_CPUFREQ_DT))
platform_device_register_simple("imx-cpufreq-dt", -1, NULL, 0);
@@ -142,6 +148,6 @@ static int __init imx8_soc_init(void)
free_soc:
kfree(soc_dev_attr);
of_node_put(root);
- return -ENODEV;
+ return ret;
}
device_initcall(imx8_soc_init);
--
2.7.4
^ permalink raw reply related [flat|nested] 6+ messages in thread
* [PATCH RESEND 2/2] soc: imx: soc-imx8: Correct return value of error handle
@ 2019-05-24 5:51 ` Anson.Huang
0 siblings, 0 replies; 6+ messages in thread
From: Anson.Huang @ 2019-05-24 5:51 UTC (permalink / raw)
To: shawnguo, s.hauer, kernel, festevam, leonard.crestez, abel.vesa,
viresh.kumar, linux-arm-kernel, linux-kernel, hyc.nju
Cc: Linux-imx
From: Anson Huang <Anson.Huang@nxp.com>
Current implementation of i.MX8 SoC driver returns -ENODEV
for all cases of error during initialization, this is incorrect.
This patch fixes them using correct return value according
to different errors.
Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Reviewed-by: Leonard Crestez <leonard.crestez@nxp.com>
---
drivers/soc/imx/soc-imx8.c | 16 +++++++++++-----
1 file changed, 11 insertions(+), 5 deletions(-)
diff --git a/drivers/soc/imx/soc-imx8.c b/drivers/soc/imx/soc-imx8.c
index d5badde..2183edf 100644
--- a/drivers/soc/imx/soc-imx8.c
+++ b/drivers/soc/imx/soc-imx8.c
@@ -102,7 +102,7 @@ static int __init imx8_soc_init(void)
soc_dev_attr = kzalloc(sizeof(*soc_dev_attr), GFP_KERNEL);
if (!soc_dev_attr)
- return -ENODEV;
+ return -ENOMEM;
soc_dev_attr->family = "Freescale i.MX";
@@ -112,8 +112,10 @@ static int __init imx8_soc_init(void)
goto free_soc;
id = of_match_node(imx8_soc_match, root);
- if (!id)
+ if (!id) {
+ ret = -ENODEV;
goto free_soc;
+ }
data = id->data;
if (data) {
@@ -123,12 +125,16 @@ static int __init imx8_soc_init(void)
}
soc_dev_attr->revision = imx8_revision(soc_rev);
- if (!soc_dev_attr->revision)
+ if (!soc_dev_attr->revision) {
+ ret = -ENOMEM;
goto free_soc;
+ }
soc_dev = soc_device_register(soc_dev_attr);
- if (IS_ERR(soc_dev))
+ if (IS_ERR(soc_dev)) {
+ ret = PTR_ERR(soc_dev);
goto free_rev;
+ }
if (IS_ENABLED(CONFIG_ARM_IMX_CPUFREQ_DT))
platform_device_register_simple("imx-cpufreq-dt", -1, NULL, 0);
@@ -142,6 +148,6 @@ static int __init imx8_soc_init(void)
free_soc:
kfree(soc_dev_attr);
of_node_put(root);
- return -ENODEV;
+ return ret;
}
device_initcall(imx8_soc_init);
--
2.7.4
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
^ permalink raw reply related [flat|nested] 6+ messages in thread
* Re: [PATCH RESEND 1/2] soc: imx: soc-imx8: Avoid unnecessary of_node_put() in error handling
2019-05-24 5:51 ` Anson.Huang
@ 2019-06-05 6:09 ` Shawn Guo
-1 siblings, 0 replies; 6+ messages in thread
From: Shawn Guo @ 2019-06-05 6:09 UTC (permalink / raw)
To: Anson.Huang
Cc: s.hauer, kernel, festevam, leonard.crestez, abel.vesa,
viresh.kumar, linux-arm-kernel, linux-kernel, hyc.nju, Linux-imx
On Fri, May 24, 2019 at 01:51:00PM +0800, Anson.Huang@nxp.com wrote:
> From: Anson Huang <Anson.Huang@nxp.com>
>
> of_node_put() is called after of_match_node() successfully called,
> then in the following error handling, of_node_put() is called again
> which is unnecessary, this patch adjusts the location of of_node_put()
> to avoid such scenario.
>
> Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
> Reviewed-by: Leonard Crestez <leonard.crestez@nxp.com>
Applied both, thanks.
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [PATCH RESEND 1/2] soc: imx: soc-imx8: Avoid unnecessary of_node_put() in error handling
@ 2019-06-05 6:09 ` Shawn Guo
0 siblings, 0 replies; 6+ messages in thread
From: Shawn Guo @ 2019-06-05 6:09 UTC (permalink / raw)
To: Anson.Huang
Cc: abel.vesa, viresh.kumar, s.hauer, linux-kernel, hyc.nju,
Linux-imx, kernel, leonard.crestez, festevam, linux-arm-kernel
On Fri, May 24, 2019 at 01:51:00PM +0800, Anson.Huang@nxp.com wrote:
> From: Anson Huang <Anson.Huang@nxp.com>
>
> of_node_put() is called after of_match_node() successfully called,
> then in the following error handling, of_node_put() is called again
> which is unnecessary, this patch adjusts the location of of_node_put()
> to avoid such scenario.
>
> Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
> Reviewed-by: Leonard Crestez <leonard.crestez@nxp.com>
Applied both, thanks.
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2019-06-05 6:10 UTC | newest]
Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed)
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2019-05-24 5:51 [PATCH RESEND 1/2] soc: imx: soc-imx8: Avoid unnecessary of_node_put() in error handling Anson.Huang
2019-05-24 5:51 ` Anson.Huang
2019-05-24 5:51 ` [PATCH RESEND 2/2] soc: imx: soc-imx8: Correct return value of error handle Anson.Huang
2019-05-24 5:51 ` Anson.Huang
2019-06-05 6:09 ` [PATCH RESEND 1/2] soc: imx: soc-imx8: Avoid unnecessary of_node_put() in error handling Shawn Guo
2019-06-05 6:09 ` Shawn Guo
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