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* [PATCH 1/3] thermal: of: Fix OF node leak in thermal_of_trips_init() error path
@ 2024-08-14 19:58 Krzysztof Kozlowski
  2024-08-14 19:58 ` [PATCH 2/3] thermal: of: Fix OF node leak in thermal_of_zone_register() Krzysztof Kozlowski
                   ` (5 more replies)
  0 siblings, 6 replies; 17+ messages in thread
From: Krzysztof Kozlowski @ 2024-08-14 19:58 UTC (permalink / raw)
  To: Rafael J. Wysocki, Daniel Lezcano, Zhang Rui, Lukasz Luba,
	linux-pm, linux-kernel
  Cc: Krzysztof Kozlowski, stable

Terminating for_each_child_of_node() loop requires dropping OF node
reference, so bailing out after thermal_of_populate_trip() error misses
this.  Solve the OF node reference leak with scoped
for_each_child_of_node_scoped().

Fixes: d0c75fa2c17f ("thermal/of: Initialize trip points separately")
Cc: <stable@vger.kernel.org>
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
---
 drivers/thermal/thermal_of.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/thermal/thermal_of.c b/drivers/thermal/thermal_of.c
index aa34b6e82e26..30f8d6e70484 100644
--- a/drivers/thermal/thermal_of.c
+++ b/drivers/thermal/thermal_of.c
@@ -125,7 +125,7 @@ static int thermal_of_populate_trip(struct device_node *np,
 static struct thermal_trip *thermal_of_trips_init(struct device_node *np, int *ntrips)
 {
 	struct thermal_trip *tt;
-	struct device_node *trips, *trip;
+	struct device_node *trips;
 	int ret, count;
 
 	trips = of_get_child_by_name(np, "trips");
@@ -150,7 +150,7 @@ static struct thermal_trip *thermal_of_trips_init(struct device_node *np, int *n
 	*ntrips = count;
 
 	count = 0;
-	for_each_child_of_node(trips, trip) {
+	for_each_child_of_node_scoped(trips, trip) {
 		ret = thermal_of_populate_trip(trip, &tt[count++]);
 		if (ret)
 			goto out_kfree;
-- 
2.43.0


^ permalink raw reply related	[flat|nested] 17+ messages in thread

* [PATCH 2/3] thermal: of: Fix OF node leak in thermal_of_zone_register()
  2024-08-14 19:58 [PATCH 1/3] thermal: of: Fix OF node leak in thermal_of_trips_init() error path Krzysztof Kozlowski
@ 2024-08-14 19:58 ` Krzysztof Kozlowski
  2024-08-15  4:51   ` Chen-Yu Tsai
  2024-08-22 16:10   ` Daniel Lezcano
  2024-08-14 19:58 ` [PATCH 3/3] thermal: of: Fix OF node leak in of_thermal_zone_find() error paths Krzysztof Kozlowski
                   ` (4 subsequent siblings)
  5 siblings, 2 replies; 17+ messages in thread
From: Krzysztof Kozlowski @ 2024-08-14 19:58 UTC (permalink / raw)
  To: Rafael J. Wysocki, Daniel Lezcano, Zhang Rui, Lukasz Luba,
	linux-pm, linux-kernel
  Cc: Krzysztof Kozlowski, stable

thermal_of_zone_register() calls of_thermal_zone_find() which will
iterate over OF nodes with for_each_available_child_of_node() to find
matching thermal zone node.  When it finds such, it exits the loop and
returns the node.  Prematurely ending for_each_available_child_of_node()
loops requires dropping OF node reference, thus success of
of_thermal_zone_find() means that caller must drop the reference.

Fixes: 3fd6d6e2b4e8 ("thermal/of: Rework the thermal device tree initialization")
Cc: <stable@vger.kernel.org>
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
---
 drivers/thermal/thermal_of.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/drivers/thermal/thermal_of.c b/drivers/thermal/thermal_of.c
index 30f8d6e70484..b08a9b64718d 100644
--- a/drivers/thermal/thermal_of.c
+++ b/drivers/thermal/thermal_of.c
@@ -491,7 +491,8 @@ static struct thermal_zone_device *thermal_of_zone_register(struct device_node *
 	trips = thermal_of_trips_init(np, &ntrips);
 	if (IS_ERR(trips)) {
 		pr_err("Failed to find trip points for %pOFn id=%d\n", sensor, id);
-		return ERR_CAST(trips);
+		ret = PTR_ERR(trips);
+		goto out_of_node_put;
 	}
 
 	ret = thermal_of_monitor_init(np, &delay, &pdelay);
@@ -519,6 +520,7 @@ static struct thermal_zone_device *thermal_of_zone_register(struct device_node *
 		goto out_kfree_trips;
 	}
 
+	of_node_put(np);
 	kfree(trips);
 
 	ret = thermal_zone_device_enable(tz);
@@ -533,6 +535,8 @@ static struct thermal_zone_device *thermal_of_zone_register(struct device_node *
 
 out_kfree_trips:
 	kfree(trips);
+out_of_node_put:
+	of_node_put(np);
 
 	return ERR_PTR(ret);
 }
-- 
2.43.0


^ permalink raw reply related	[flat|nested] 17+ messages in thread

* [PATCH 3/3] thermal: of: Fix OF node leak in of_thermal_zone_find() error paths
  2024-08-14 19:58 [PATCH 1/3] thermal: of: Fix OF node leak in thermal_of_trips_init() error path Krzysztof Kozlowski
  2024-08-14 19:58 ` [PATCH 2/3] thermal: of: Fix OF node leak in thermal_of_zone_register() Krzysztof Kozlowski
@ 2024-08-14 19:58 ` Krzysztof Kozlowski
  2024-08-15  4:54   ` Chen-Yu Tsai
  2024-08-22 16:11   ` Daniel Lezcano
  2024-08-15  4:48 ` [PATCH 1/3] thermal: of: Fix OF node leak in thermal_of_trips_init() error path Chen-Yu Tsai
                   ` (3 subsequent siblings)
  5 siblings, 2 replies; 17+ messages in thread
From: Krzysztof Kozlowski @ 2024-08-14 19:58 UTC (permalink / raw)
  To: Rafael J. Wysocki, Daniel Lezcano, Zhang Rui, Lukasz Luba,
	linux-pm, linux-kernel
  Cc: Krzysztof Kozlowski, stable

Terminating for_each_available_child_of_node() loop requires dropping OF
node reference, so bailing out on errors misses this.  Solve the OF node
reference leak with scoped for_each_available_child_of_node_scoped().

Fixes: 3fd6d6e2b4e8 ("thermal/of: Rework the thermal device tree initialization")
Cc: <stable@vger.kernel.org>
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
---
 drivers/thermal/thermal_of.c | 13 +++++++------
 1 file changed, 7 insertions(+), 6 deletions(-)

diff --git a/drivers/thermal/thermal_of.c b/drivers/thermal/thermal_of.c
index b08a9b64718d..1f252692815a 100644
--- a/drivers/thermal/thermal_of.c
+++ b/drivers/thermal/thermal_of.c
@@ -184,14 +184,14 @@ static struct device_node *of_thermal_zone_find(struct device_node *sensor, int
 	 * Search for each thermal zone, a defined sensor
 	 * corresponding to the one passed as parameter
 	 */
-	for_each_available_child_of_node(np, tz) {
+	for_each_available_child_of_node_scoped(np, child) {
 
 		int count, i;
 
-		count = of_count_phandle_with_args(tz, "thermal-sensors",
+		count = of_count_phandle_with_args(child, "thermal-sensors",
 						   "#thermal-sensor-cells");
 		if (count <= 0) {
-			pr_err("%pOFn: missing thermal sensor\n", tz);
+			pr_err("%pOFn: missing thermal sensor\n", child);
 			tz = ERR_PTR(-EINVAL);
 			goto out;
 		}
@@ -200,18 +200,19 @@ static struct device_node *of_thermal_zone_find(struct device_node *sensor, int
 
 			int ret;
 
-			ret = of_parse_phandle_with_args(tz, "thermal-sensors",
+			ret = of_parse_phandle_with_args(child, "thermal-sensors",
 							 "#thermal-sensor-cells",
 							 i, &sensor_specs);
 			if (ret < 0) {
-				pr_err("%pOFn: Failed to read thermal-sensors cells: %d\n", tz, ret);
+				pr_err("%pOFn: Failed to read thermal-sensors cells: %d\n", child, ret);
 				tz = ERR_PTR(ret);
 				goto out;
 			}
 
 			if ((sensor == sensor_specs.np) && id == (sensor_specs.args_count ?
 								  sensor_specs.args[0] : 0)) {
-				pr_debug("sensor %pOFn id=%d belongs to %pOFn\n", sensor, id, tz);
+				pr_debug("sensor %pOFn id=%d belongs to %pOFn\n", sensor, id, child);
+				tz = no_free_ptr(child);
 				goto out;
 			}
 		}
-- 
2.43.0


^ permalink raw reply related	[flat|nested] 17+ messages in thread

* Re: [PATCH 1/3] thermal: of: Fix OF node leak in thermal_of_trips_init() error path
  2024-08-14 19:58 [PATCH 1/3] thermal: of: Fix OF node leak in thermal_of_trips_init() error path Krzysztof Kozlowski
  2024-08-14 19:58 ` [PATCH 2/3] thermal: of: Fix OF node leak in thermal_of_zone_register() Krzysztof Kozlowski
  2024-08-14 19:58 ` [PATCH 3/3] thermal: of: Fix OF node leak in of_thermal_zone_find() error paths Krzysztof Kozlowski
@ 2024-08-15  4:48 ` Chen-Yu Tsai
  2024-08-15  6:48 ` Markus Elfring
                   ` (2 subsequent siblings)
  5 siblings, 0 replies; 17+ messages in thread
From: Chen-Yu Tsai @ 2024-08-15  4:48 UTC (permalink / raw)
  To: Krzysztof Kozlowski
  Cc: Rafael J. Wysocki, Daniel Lezcano, Zhang Rui, Lukasz Luba,
	linux-pm, linux-kernel, stable

On Wed, Aug 14, 2024 at 09:58:21PM +0200, Krzysztof Kozlowski wrote:
> Terminating for_each_child_of_node() loop requires dropping OF node
> reference, so bailing out after thermal_of_populate_trip() error misses
> this.  Solve the OF node reference leak with scoped
> for_each_child_of_node_scoped().
> 
> Fixes: d0c75fa2c17f ("thermal/of: Initialize trip points separately")
> Cc: <stable@vger.kernel.org>
> Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>

Reviewed-by: Chen-Yu Tsai <wenst@chromium.org>

> ---
>  drivers/thermal/thermal_of.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/thermal/thermal_of.c b/drivers/thermal/thermal_of.c
> index aa34b6e82e26..30f8d6e70484 100644
> --- a/drivers/thermal/thermal_of.c
> +++ b/drivers/thermal/thermal_of.c
> @@ -125,7 +125,7 @@ static int thermal_of_populate_trip(struct device_node *np,
>  static struct thermal_trip *thermal_of_trips_init(struct device_node *np, int *ntrips)
>  {
>  	struct thermal_trip *tt;
> -	struct device_node *trips, *trip;
> +	struct device_node *trips;
>  	int ret, count;
>  
>  	trips = of_get_child_by_name(np, "trips");
> @@ -150,7 +150,7 @@ static struct thermal_trip *thermal_of_trips_init(struct device_node *np, int *n
>  	*ntrips = count;
>  
>  	count = 0;
> -	for_each_child_of_node(trips, trip) {
> +	for_each_child_of_node_scoped(trips, trip) {
>  		ret = thermal_of_populate_trip(trip, &tt[count++]);
>  		if (ret)
>  			goto out_kfree;
> -- 
> 2.43.0
> 

^ permalink raw reply	[flat|nested] 17+ messages in thread

* Re: [PATCH 2/3] thermal: of: Fix OF node leak in thermal_of_zone_register()
  2024-08-14 19:58 ` [PATCH 2/3] thermal: of: Fix OF node leak in thermal_of_zone_register() Krzysztof Kozlowski
@ 2024-08-15  4:51   ` Chen-Yu Tsai
  2024-08-22 16:10   ` Daniel Lezcano
  1 sibling, 0 replies; 17+ messages in thread
From: Chen-Yu Tsai @ 2024-08-15  4:51 UTC (permalink / raw)
  To: Krzysztof Kozlowski
  Cc: Rafael J. Wysocki, Daniel Lezcano, Zhang Rui, Lukasz Luba,
	linux-pm, linux-kernel, stable

On Wed, Aug 14, 2024 at 09:58:22PM +0200, Krzysztof Kozlowski wrote:
> thermal_of_zone_register() calls of_thermal_zone_find() which will
> iterate over OF nodes with for_each_available_child_of_node() to find
> matching thermal zone node.  When it finds such, it exits the loop and
> returns the node.  Prematurely ending for_each_available_child_of_node()
> loops requires dropping OF node reference, thus success of
> of_thermal_zone_find() means that caller must drop the reference.
> 
> Fixes: 3fd6d6e2b4e8 ("thermal/of: Rework the thermal device tree initialization")
> Cc: <stable@vger.kernel.org>
> Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>

Reviewed-by: Chen-Yu Tsai <wenst@chromium.org>

> ---
>  drivers/thermal/thermal_of.c | 6 +++++-
>  1 file changed, 5 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/thermal/thermal_of.c b/drivers/thermal/thermal_of.c
> index 30f8d6e70484..b08a9b64718d 100644
> --- a/drivers/thermal/thermal_of.c
> +++ b/drivers/thermal/thermal_of.c
> @@ -491,7 +491,8 @@ static struct thermal_zone_device *thermal_of_zone_register(struct device_node *
>  	trips = thermal_of_trips_init(np, &ntrips);
>  	if (IS_ERR(trips)) {
>  		pr_err("Failed to find trip points for %pOFn id=%d\n", sensor, id);
> -		return ERR_CAST(trips);
> +		ret = PTR_ERR(trips);
> +		goto out_of_node_put;
>  	}
>  
>  	ret = thermal_of_monitor_init(np, &delay, &pdelay);
> @@ -519,6 +520,7 @@ static struct thermal_zone_device *thermal_of_zone_register(struct device_node *
>  		goto out_kfree_trips;
>  	}
>  
> +	of_node_put(np);
>  	kfree(trips);
>  
>  	ret = thermal_zone_device_enable(tz);
> @@ -533,6 +535,8 @@ static struct thermal_zone_device *thermal_of_zone_register(struct device_node *
>  
>  out_kfree_trips:
>  	kfree(trips);
> +out_of_node_put:
> +	of_node_put(np);
>  
>  	return ERR_PTR(ret);
>  }
> -- 
> 2.43.0
> 

^ permalink raw reply	[flat|nested] 17+ messages in thread

* Re: [PATCH 3/3] thermal: of: Fix OF node leak in of_thermal_zone_find() error paths
  2024-08-14 19:58 ` [PATCH 3/3] thermal: of: Fix OF node leak in of_thermal_zone_find() error paths Krzysztof Kozlowski
@ 2024-08-15  4:54   ` Chen-Yu Tsai
  2024-08-22 16:11   ` Daniel Lezcano
  1 sibling, 0 replies; 17+ messages in thread
From: Chen-Yu Tsai @ 2024-08-15  4:54 UTC (permalink / raw)
  To: Krzysztof Kozlowski
  Cc: Rafael J. Wysocki, Daniel Lezcano, Zhang Rui, Lukasz Luba,
	linux-pm, linux-kernel, stable

On Wed, Aug 14, 2024 at 09:58:23PM +0200, Krzysztof Kozlowski wrote:
> Terminating for_each_available_child_of_node() loop requires dropping OF
> node reference, so bailing out on errors misses this.  Solve the OF node
> reference leak with scoped for_each_available_child_of_node_scoped().
> 
> Fixes: 3fd6d6e2b4e8 ("thermal/of: Rework the thermal device tree initialization")
> Cc: <stable@vger.kernel.org>
> Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>

Reviewed-by: Chen-Yu Tsai <wenst@chromium.org>

> ---
>  drivers/thermal/thermal_of.c | 13 +++++++------
>  1 file changed, 7 insertions(+), 6 deletions(-)
> 
> diff --git a/drivers/thermal/thermal_of.c b/drivers/thermal/thermal_of.c
> index b08a9b64718d..1f252692815a 100644
> --- a/drivers/thermal/thermal_of.c
> +++ b/drivers/thermal/thermal_of.c
> @@ -184,14 +184,14 @@ static struct device_node *of_thermal_zone_find(struct device_node *sensor, int
>  	 * Search for each thermal zone, a defined sensor
>  	 * corresponding to the one passed as parameter
>  	 */
> -	for_each_available_child_of_node(np, tz) {
> +	for_each_available_child_of_node_scoped(np, child) {
>  
>  		int count, i;
>  
> -		count = of_count_phandle_with_args(tz, "thermal-sensors",
> +		count = of_count_phandle_with_args(child, "thermal-sensors",
>  						   "#thermal-sensor-cells");
>  		if (count <= 0) {
> -			pr_err("%pOFn: missing thermal sensor\n", tz);
> +			pr_err("%pOFn: missing thermal sensor\n", child);
>  			tz = ERR_PTR(-EINVAL);
>  			goto out;
>  		}
> @@ -200,18 +200,19 @@ static struct device_node *of_thermal_zone_find(struct device_node *sensor, int
>  
>  			int ret;
>  
> -			ret = of_parse_phandle_with_args(tz, "thermal-sensors",
> +			ret = of_parse_phandle_with_args(child, "thermal-sensors",
>  							 "#thermal-sensor-cells",
>  							 i, &sensor_specs);
>  			if (ret < 0) {
> -				pr_err("%pOFn: Failed to read thermal-sensors cells: %d\n", tz, ret);
> +				pr_err("%pOFn: Failed to read thermal-sensors cells: %d\n", child, ret);
>  				tz = ERR_PTR(ret);
>  				goto out;
>  			}
>  
>  			if ((sensor == sensor_specs.np) && id == (sensor_specs.args_count ?
>  								  sensor_specs.args[0] : 0)) {
> -				pr_debug("sensor %pOFn id=%d belongs to %pOFn\n", sensor, id, tz);
> +				pr_debug("sensor %pOFn id=%d belongs to %pOFn\n", sensor, id, child);
> +				tz = no_free_ptr(child);
>  				goto out;
>  			}
>  		}
> -- 
> 2.43.0
> 

^ permalink raw reply	[flat|nested] 17+ messages in thread

* Re: [PATCH 1/3] thermal: of: Fix OF node leak in thermal_of_trips_init() error path
  2024-08-14 19:58 [PATCH 1/3] thermal: of: Fix OF node leak in thermal_of_trips_init() error path Krzysztof Kozlowski
                   ` (2 preceding siblings ...)
  2024-08-15  4:48 ` [PATCH 1/3] thermal: of: Fix OF node leak in thermal_of_trips_init() error path Chen-Yu Tsai
@ 2024-08-15  6:48 ` Markus Elfring
  2024-08-19 10:12 ` Daniel Lezcano
  2024-08-22 16:09 ` Daniel Lezcano
  5 siblings, 0 replies; 17+ messages in thread
From: Markus Elfring @ 2024-08-15  6:48 UTC (permalink / raw)
  To: Krzysztof Kozlowski, linux-pm, Daniel Lezcano, Lukasz Luba,
	Rafael J. Wysocki, Zhang Rui
  Cc: stable, LKML, Chen-Yu Tsai

> Terminating for_each_child_of_node() loop requires dropping OF node
…

Can a cover letter be helpful for such patch series?

Regards,
Markus

^ permalink raw reply	[flat|nested] 17+ messages in thread

* Re: [PATCH 1/3] thermal: of: Fix OF node leak in thermal_of_trips_init() error path
  2024-08-14 19:58 [PATCH 1/3] thermal: of: Fix OF node leak in thermal_of_trips_init() error path Krzysztof Kozlowski
                   ` (3 preceding siblings ...)
  2024-08-15  6:48 ` Markus Elfring
@ 2024-08-19 10:12 ` Daniel Lezcano
  2024-08-19 13:20   ` Rafael J. Wysocki
  2024-08-22 16:09 ` Daniel Lezcano
  5 siblings, 1 reply; 17+ messages in thread
From: Daniel Lezcano @ 2024-08-19 10:12 UTC (permalink / raw)
  To: Krzysztof Kozlowski, Rafael J. Wysocki, Zhang Rui, Lukasz Luba,
	linux-pm, linux-kernel
  Cc: stable

On 14/08/2024 21:58, Krzysztof Kozlowski wrote:
> Terminating for_each_child_of_node() loop requires dropping OF node
> reference, so bailing out after thermal_of_populate_trip() error misses
> this.  Solve the OF node reference leak with scoped
> for_each_child_of_node_scoped().
> 
> Fixes: d0c75fa2c17f ("thermal/of: Initialize trip points separately")
> Cc: <stable@vger.kernel.org>
> Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
> ---

Applied, thanks for the fixes


-- 
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Follow Linaro:  <http://www.facebook.com/pages/Linaro> Facebook |
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^ permalink raw reply	[flat|nested] 17+ messages in thread

* Re: [PATCH 1/3] thermal: of: Fix OF node leak in thermal_of_trips_init() error path
  2024-08-19 10:12 ` Daniel Lezcano
@ 2024-08-19 13:20   ` Rafael J. Wysocki
  2024-08-19 13:22     ` Daniel Lezcano
  0 siblings, 1 reply; 17+ messages in thread
From: Rafael J. Wysocki @ 2024-08-19 13:20 UTC (permalink / raw)
  To: Daniel Lezcano
  Cc: Krzysztof Kozlowski, Rafael J. Wysocki, Zhang Rui, Lukasz Luba,
	linux-pm, linux-kernel, stable

On Mon, Aug 19, 2024 at 12:12 PM Daniel Lezcano
<daniel.lezcano@linaro.org> wrote:
>
> On 14/08/2024 21:58, Krzysztof Kozlowski wrote:
> > Terminating for_each_child_of_node() loop requires dropping OF node
> > reference, so bailing out after thermal_of_populate_trip() error misses
> > this.  Solve the OF node reference leak with scoped
> > for_each_child_of_node_scoped().
> >
> > Fixes: d0c75fa2c17f ("thermal/of: Initialize trip points separately")
> > Cc: <stable@vger.kernel.org>
> > Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
> > ---
>
> Applied, thanks for the fixes

Is there a place from which I can pull these?

It would be good to include them into 6.11 as they are -stable material.

Alternatively, I can pick them up from the list.

^ permalink raw reply	[flat|nested] 17+ messages in thread

* Re: [PATCH 1/3] thermal: of: Fix OF node leak in thermal_of_trips_init() error path
  2024-08-19 13:20   ` Rafael J. Wysocki
@ 2024-08-19 13:22     ` Daniel Lezcano
  2024-08-19 13:31       ` Rafael J. Wysocki
  0 siblings, 1 reply; 17+ messages in thread
From: Daniel Lezcano @ 2024-08-19 13:22 UTC (permalink / raw)
  To: Rafael J. Wysocki
  Cc: Krzysztof Kozlowski, Zhang Rui, Lukasz Luba, linux-pm,
	linux-kernel, stable

On 19/08/2024 15:20, Rafael J. Wysocki wrote:
> On Mon, Aug 19, 2024 at 12:12 PM Daniel Lezcano
> <daniel.lezcano@linaro.org> wrote:
>>
>> On 14/08/2024 21:58, Krzysztof Kozlowski wrote:
>>> Terminating for_each_child_of_node() loop requires dropping OF node
>>> reference, so bailing out after thermal_of_populate_trip() error misses
>>> this.  Solve the OF node reference leak with scoped
>>> for_each_child_of_node_scoped().
>>>
>>> Fixes: d0c75fa2c17f ("thermal/of: Initialize trip points separately")
>>> Cc: <stable@vger.kernel.org>
>>> Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
>>> ---
>>
>> Applied, thanks for the fixes
> 
> Is there a place from which I can pull these?
> 
> It would be good to include them into 6.11 as they are -stable material.
> 
> Alternatively, I can pick them up from the list.

I'll send a PR for fixes only. Let me double check if there are other 
fixes to go along with those

-- 
<http://www.linaro.org/> Linaro.org │ Open source software for ARM SoCs

Follow Linaro:  <http://www.facebook.com/pages/Linaro> Facebook |
<http://twitter.com/#!/linaroorg> Twitter |
<http://www.linaro.org/linaro-blog/> Blog

^ permalink raw reply	[flat|nested] 17+ messages in thread

* Re: [PATCH 1/3] thermal: of: Fix OF node leak in thermal_of_trips_init() error path
  2024-08-19 13:22     ` Daniel Lezcano
@ 2024-08-19 13:31       ` Rafael J. Wysocki
  2024-08-22 15:54         ` Rafael J. Wysocki
  0 siblings, 1 reply; 17+ messages in thread
From: Rafael J. Wysocki @ 2024-08-19 13:31 UTC (permalink / raw)
  To: Daniel Lezcano
  Cc: Rafael J. Wysocki, Krzysztof Kozlowski, Zhang Rui, Lukasz Luba,
	linux-pm, linux-kernel, stable

On Mon, Aug 19, 2024 at 3:22 PM Daniel Lezcano
<daniel.lezcano@linaro.org> wrote:
>
> On 19/08/2024 15:20, Rafael J. Wysocki wrote:
> > On Mon, Aug 19, 2024 at 12:12 PM Daniel Lezcano
> > <daniel.lezcano@linaro.org> wrote:
> >>
> >> On 14/08/2024 21:58, Krzysztof Kozlowski wrote:
> >>> Terminating for_each_child_of_node() loop requires dropping OF node
> >>> reference, so bailing out after thermal_of_populate_trip() error misses
> >>> this.  Solve the OF node reference leak with scoped
> >>> for_each_child_of_node_scoped().
> >>>
> >>> Fixes: d0c75fa2c17f ("thermal/of: Initialize trip points separately")
> >>> Cc: <stable@vger.kernel.org>
> >>> Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
> >>> ---
> >>
> >> Applied, thanks for the fixes
> >
> > Is there a place from which I can pull these?
> >
> > It would be good to include them into 6.11 as they are -stable material.
> >
> > Alternatively, I can pick them up from the list.
>
> I'll send a PR for fixes only. Let me double check if there are other
> fixes to go along with those

Sure, thanks!

^ permalink raw reply	[flat|nested] 17+ messages in thread

* Re: [PATCH 1/3] thermal: of: Fix OF node leak in thermal_of_trips_init() error path
  2024-08-19 13:31       ` Rafael J. Wysocki
@ 2024-08-22 15:54         ` Rafael J. Wysocki
  2024-08-22 16:09           ` Daniel Lezcano
  0 siblings, 1 reply; 17+ messages in thread
From: Rafael J. Wysocki @ 2024-08-22 15:54 UTC (permalink / raw)
  To: Daniel Lezcano
  Cc: Krzysztof Kozlowski, Zhang Rui, Lukasz Luba, linux-pm,
	linux-kernel

On Mon, Aug 19, 2024 at 3:31 PM Rafael J. Wysocki <rafael@kernel.org> wrote:
>
> On Mon, Aug 19, 2024 at 3:22 PM Daniel Lezcano
> <daniel.lezcano@linaro.org> wrote:
> >
> > On 19/08/2024 15:20, Rafael J. Wysocki wrote:
> > > On Mon, Aug 19, 2024 at 12:12 PM Daniel Lezcano
> > > <daniel.lezcano@linaro.org> wrote:
> > >>
> > >> On 14/08/2024 21:58, Krzysztof Kozlowski wrote:
> > >>> Terminating for_each_child_of_node() loop requires dropping OF node
> > >>> reference, so bailing out after thermal_of_populate_trip() error misses
> > >>> this.  Solve the OF node reference leak with scoped
> > >>> for_each_child_of_node_scoped().
> > >>>
> > >>> Fixes: d0c75fa2c17f ("thermal/of: Initialize trip points separately")
> > >>> Cc: <stable@vger.kernel.org>
> > >>> Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
> > >>> ---
> > >>
> > >> Applied, thanks for the fixes
> > >
> > > Is there a place from which I can pull these?
> > >
> > > It would be good to include them into 6.11 as they are -stable material.
> > >
> > > Alternatively, I can pick them up from the list.
> >
> > I'll send a PR for fixes only. Let me double check if there are other
> > fixes to go along with those
>
> Sure, thanks!

Sorry for pressing, but it would be good to get this material into -rc5.

I can still pick up the patches, I don't believe they are controversial.

^ permalink raw reply	[flat|nested] 17+ messages in thread

* Re: [PATCH 1/3] thermal: of: Fix OF node leak in thermal_of_trips_init() error path
  2024-08-22 15:54         ` Rafael J. Wysocki
@ 2024-08-22 16:09           ` Daniel Lezcano
  0 siblings, 0 replies; 17+ messages in thread
From: Daniel Lezcano @ 2024-08-22 16:09 UTC (permalink / raw)
  To: Rafael J. Wysocki
  Cc: Krzysztof Kozlowski, Zhang Rui, Lukasz Luba, linux-pm,
	linux-kernel

On 22/08/2024 17:54, Rafael J. Wysocki wrote:
> On Mon, Aug 19, 2024 at 3:31 PM Rafael J. Wysocki <rafael@kernel.org> wrote:
>>
>> On Mon, Aug 19, 2024 at 3:22 PM Daniel Lezcano
>> <daniel.lezcano@linaro.org> wrote:
>>>
>>> On 19/08/2024 15:20, Rafael J. Wysocki wrote:
>>>> On Mon, Aug 19, 2024 at 12:12 PM Daniel Lezcano
>>>> <daniel.lezcano@linaro.org> wrote:
>>>>>
>>>>> On 14/08/2024 21:58, Krzysztof Kozlowski wrote:
>>>>>> Terminating for_each_child_of_node() loop requires dropping OF node
>>>>>> reference, so bailing out after thermal_of_populate_trip() error misses
>>>>>> this.  Solve the OF node reference leak with scoped
>>>>>> for_each_child_of_node_scoped().
>>>>>>
>>>>>> Fixes: d0c75fa2c17f ("thermal/of: Initialize trip points separately")
>>>>>> Cc: <stable@vger.kernel.org>
>>>>>> Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
>>>>>> ---
>>>>>
>>>>> Applied, thanks for the fixes
>>>>
>>>> Is there a place from which I can pull these?
>>>>
>>>> It would be good to include them into 6.11 as they are -stable material.
>>>>
>>>> Alternatively, I can pick them up from the list.
>>>
>>> I'll send a PR for fixes only. Let me double check if there are other
>>> fixes to go along with those
>>
>> Sure, thanks!
> 
> Sorry for pressing, but it would be good to get this material into -rc5.
> 
> I can still pick up the patches, I don't believe they are controversial.

Ok, feel free to pick them. Give me a few minutes to add my tags

-- 
<http://www.linaro.org/> Linaro.org │ Open source software for ARM SoCs

Follow Linaro:  <http://www.facebook.com/pages/Linaro> Facebook |
<http://twitter.com/#!/linaroorg> Twitter |
<http://www.linaro.org/linaro-blog/> Blog

^ permalink raw reply	[flat|nested] 17+ messages in thread

* Re: [PATCH 1/3] thermal: of: Fix OF node leak in thermal_of_trips_init() error path
  2024-08-14 19:58 [PATCH 1/3] thermal: of: Fix OF node leak in thermal_of_trips_init() error path Krzysztof Kozlowski
                   ` (4 preceding siblings ...)
  2024-08-19 10:12 ` Daniel Lezcano
@ 2024-08-22 16:09 ` Daniel Lezcano
  5 siblings, 0 replies; 17+ messages in thread
From: Daniel Lezcano @ 2024-08-22 16:09 UTC (permalink / raw)
  To: Krzysztof Kozlowski, Rafael J. Wysocki, Zhang Rui, Lukasz Luba,
	linux-pm, linux-kernel
  Cc: stable

On 14/08/2024 21:58, Krzysztof Kozlowski wrote:
> Terminating for_each_child_of_node() loop requires dropping OF node
> reference, so bailing out after thermal_of_populate_trip() error misses
> this.  Solve the OF node reference leak with scoped
> for_each_child_of_node_scoped().
> 
> Fixes: d0c75fa2c17f ("thermal/of: Initialize trip points separately")
> Cc: <stable@vger.kernel.org>
> Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>

Reviewed-by: Daniel Lezcano <daniel.lezcano@linaro.org>


-- 
<http://www.linaro.org/> Linaro.org │ Open source software for ARM SoCs

Follow Linaro:  <http://www.facebook.com/pages/Linaro> Facebook |
<http://twitter.com/#!/linaroorg> Twitter |
<http://www.linaro.org/linaro-blog/> Blog

^ permalink raw reply	[flat|nested] 17+ messages in thread

* Re: [PATCH 2/3] thermal: of: Fix OF node leak in thermal_of_zone_register()
  2024-08-14 19:58 ` [PATCH 2/3] thermal: of: Fix OF node leak in thermal_of_zone_register() Krzysztof Kozlowski
  2024-08-15  4:51   ` Chen-Yu Tsai
@ 2024-08-22 16:10   ` Daniel Lezcano
  1 sibling, 0 replies; 17+ messages in thread
From: Daniel Lezcano @ 2024-08-22 16:10 UTC (permalink / raw)
  To: Krzysztof Kozlowski, Rafael J. Wysocki, Zhang Rui, Lukasz Luba,
	linux-pm, linux-kernel
  Cc: stable

On 14/08/2024 21:58, Krzysztof Kozlowski wrote:
> thermal_of_zone_register() calls of_thermal_zone_find() which will
> iterate over OF nodes with for_each_available_child_of_node() to find
> matching thermal zone node.  When it finds such, it exits the loop and
> returns the node.  Prematurely ending for_each_available_child_of_node()
> loops requires dropping OF node reference, thus success of
> of_thermal_zone_find() means that caller must drop the reference.
> 
> Fixes: 3fd6d6e2b4e8 ("thermal/of: Rework the thermal device tree initialization")
> Cc: <stable@vger.kernel.org>
> Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
> ---

Reviewed-by: Daniel Lezcano <daniel.lezcano@linaro.org>


-- 
<http://www.linaro.org/> Linaro.org │ Open source software for ARM SoCs

Follow Linaro:  <http://www.facebook.com/pages/Linaro> Facebook |
<http://twitter.com/#!/linaroorg> Twitter |
<http://www.linaro.org/linaro-blog/> Blog

^ permalink raw reply	[flat|nested] 17+ messages in thread

* Re: [PATCH 3/3] thermal: of: Fix OF node leak in of_thermal_zone_find() error paths
  2024-08-14 19:58 ` [PATCH 3/3] thermal: of: Fix OF node leak in of_thermal_zone_find() error paths Krzysztof Kozlowski
  2024-08-15  4:54   ` Chen-Yu Tsai
@ 2024-08-22 16:11   ` Daniel Lezcano
  2024-08-22 19:05     ` Rafael J. Wysocki
  1 sibling, 1 reply; 17+ messages in thread
From: Daniel Lezcano @ 2024-08-22 16:11 UTC (permalink / raw)
  To: Krzysztof Kozlowski, Rafael J. Wysocki, Zhang Rui, Lukasz Luba,
	linux-pm, linux-kernel
  Cc: stable

On 14/08/2024 21:58, Krzysztof Kozlowski wrote:
> Terminating for_each_available_child_of_node() loop requires dropping OF
> node reference, so bailing out on errors misses this.  Solve the OF node
> reference leak with scoped for_each_available_child_of_node_scoped().
> 
> Fixes: 3fd6d6e2b4e8 ("thermal/of: Rework the thermal device tree initialization")
> Cc: <stable@vger.kernel.org>
> Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>

Reviewed-by: Daniel Lezcano <daniel.lezcano@linaro.org>

-- 
<http://www.linaro.org/> Linaro.org │ Open source software for ARM SoCs

Follow Linaro:  <http://www.facebook.com/pages/Linaro> Facebook |
<http://twitter.com/#!/linaroorg> Twitter |
<http://www.linaro.org/linaro-blog/> Blog

^ permalink raw reply	[flat|nested] 17+ messages in thread

* Re: [PATCH 3/3] thermal: of: Fix OF node leak in of_thermal_zone_find() error paths
  2024-08-22 16:11   ` Daniel Lezcano
@ 2024-08-22 19:05     ` Rafael J. Wysocki
  0 siblings, 0 replies; 17+ messages in thread
From: Rafael J. Wysocki @ 2024-08-22 19:05 UTC (permalink / raw)
  To: Daniel Lezcano, Krzysztof Kozlowski
  Cc: Rafael J. Wysocki, Zhang Rui, Lukasz Luba, linux-pm, linux-kernel,
	stable

On Thu, Aug 22, 2024 at 6:12 PM Daniel Lezcano
<daniel.lezcano@linaro.org> wrote:
>
> On 14/08/2024 21:58, Krzysztof Kozlowski wrote:
> > Terminating for_each_available_child_of_node() loop requires dropping OF
> > node reference, so bailing out on errors misses this.  Solve the OF node
> > reference leak with scoped for_each_available_child_of_node_scoped().
> >
> > Fixes: 3fd6d6e2b4e8 ("thermal/of: Rework the thermal device tree initialization")
> > Cc: <stable@vger.kernel.org>
> > Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
>
> Reviewed-by: Daniel Lezcano <daniel.lezcano@linaro.org>

Applied along with the rest of the series as fixes for 6.11-rc, thanks!

^ permalink raw reply	[flat|nested] 17+ messages in thread

end of thread, other threads:[~2024-08-22 19:05 UTC | newest]

Thread overview: 17+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2024-08-14 19:58 [PATCH 1/3] thermal: of: Fix OF node leak in thermal_of_trips_init() error path Krzysztof Kozlowski
2024-08-14 19:58 ` [PATCH 2/3] thermal: of: Fix OF node leak in thermal_of_zone_register() Krzysztof Kozlowski
2024-08-15  4:51   ` Chen-Yu Tsai
2024-08-22 16:10   ` Daniel Lezcano
2024-08-14 19:58 ` [PATCH 3/3] thermal: of: Fix OF node leak in of_thermal_zone_find() error paths Krzysztof Kozlowski
2024-08-15  4:54   ` Chen-Yu Tsai
2024-08-22 16:11   ` Daniel Lezcano
2024-08-22 19:05     ` Rafael J. Wysocki
2024-08-15  4:48 ` [PATCH 1/3] thermal: of: Fix OF node leak in thermal_of_trips_init() error path Chen-Yu Tsai
2024-08-15  6:48 ` Markus Elfring
2024-08-19 10:12 ` Daniel Lezcano
2024-08-19 13:20   ` Rafael J. Wysocki
2024-08-19 13:22     ` Daniel Lezcano
2024-08-19 13:31       ` Rafael J. Wysocki
2024-08-22 15:54         ` Rafael J. Wysocki
2024-08-22 16:09           ` Daniel Lezcano
2024-08-22 16:09 ` Daniel Lezcano

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