diff mbox series

[v1,5/7] powercap/dtpm: Move the 'root' reset place

Message ID 20220130210210.549877-5-daniel.lezcano@linaro.org (mailing list archive)
State New, archived
Delegated to: Daniel Lezcano
Headers show
Series [v1,1/7] powercap/dtpm: Change locking scheme | expand

Commit Message

Daniel Lezcano Jan. 30, 2022, 9:02 p.m. UTC 
The 'root' node is checked everytime a dtpm node is destroyed.

When we reach the end of the hierarchy destruction function, we can
unconditionnaly set the 'root' node to NULL again.

Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
---
 drivers/powercap/dtpm.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

Comments

Ulf Hansson Feb. 17, 2022, 1:19 p.m. UTC | #1 
On Sun, 30 Jan 2022 at 22:02, Daniel Lezcano <daniel.lezcano@linaro.org> wrote:
>
> The 'root' node is checked everytime a dtpm node is destroyed.
>
> When we reach the end of the hierarchy destruction function, we can
> unconditionnaly set the 'root' node to NULL again.
>
> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>

Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org>

Kind regards
Uffe

> ---
>  drivers/powercap/dtpm.c | 5 ++---
>  1 file changed, 2 insertions(+), 3 deletions(-)
>
> diff --git a/drivers/powercap/dtpm.c b/drivers/powercap/dtpm.c
> index d9d74f981118..ec931a06d90a 100644
> --- a/drivers/powercap/dtpm.c
> +++ b/drivers/powercap/dtpm.c
> @@ -184,9 +184,6 @@ int dtpm_release_zone(struct powercap_zone *pcz)
>         else
>                 kfree(dtpm);
>
> -       if (root == dtpm)
> -               root = NULL;
> -
>         return 0;
>  }
>
> @@ -656,6 +653,8 @@ void dtpm_destroy_hierarchy(void)
>
>         pct = NULL;
>
> +       root = NULL;
> +
>  out_unlock:
>         mutex_unlock(&dtpm_lock);
>  }
> --
> 2.25.1
>
diff mbox series

Patch

diff --git a/drivers/powercap/dtpm.c b/drivers/powercap/dtpm.c
index d9d74f981118..ec931a06d90a 100644
--- a/drivers/powercap/dtpm.c
+++ b/drivers/powercap/dtpm.c
@@ -184,9 +184,6 @@  int dtpm_release_zone(struct powercap_zone *pcz)
 	else
 		kfree(dtpm);
 
-	if (root == dtpm)
-		root = NULL;
-
 	return 0;
 }
 
@@ -656,6 +653,8 @@  void dtpm_destroy_hierarchy(void)
 
 	pct = NULL;
 
+	root = NULL;
+
 out_unlock:
 	mutex_unlock(&dtpm_lock);
 }