Re: [RFC][PATCH v2 05/31] timers: ACPI: Use del_timer_shutdown() before freeing timer

From: Rafael J. Wysocki
Date: Fri Oct 28 2022 - 12:57:26 EST


On Thu, Oct 27, 2022 at 5:09 PM Steven Rostedt <rostedt@xxxxxxxxxxx> wrote:
>
> From: "Steven Rostedt (Google)" <rostedt@xxxxxxxxxxx>
>
> Before a timer is freed, del_timer_shutdown() must be called.
>
> Link: https://lore.kernel.org/all/20220407161745.7d6754b3@xxxxxxxxxxxxxxxxxx/
>
> Cc: "Rafael J. Wysocki" <rafael@xxxxxxxxxx>
> Cc: Len Brown <lenb@xxxxxxxxxx>
> Cc: James Morse <james.morse@xxxxxxx>
> Cc: Tony Luck <tony.luck@xxxxxxxxx>
> Cc: Borislav Petkov <bp@xxxxxxxxx>
> Cc: Shuai Xue <xueshuai@xxxxxxxxxxxxxxxxx>
> Cc: Dave Hansen <dave.hansen@xxxxxxxxxxxxxxx>
> Cc: Jarkko Sakkinen <jarkko@xxxxxxxxxx>
> Cc: linux-acpi@xxxxxxxxxxxxxxx
> Signed-off-by: Steven Rostedt (Google) <rostedt@xxxxxxxxxxx>

Please add "APEI: ghes:" to the subject after "ACPI:".

Apart from this

Acked-by: Rafael J. Wysocki <rafael@xxxxxxxxxx>

> ---
> drivers/acpi/apei/ghes.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/acpi/apei/ghes.c b/drivers/acpi/apei/ghes.c
> index 80ad530583c9..916b952b14d0 100644
> --- a/drivers/acpi/apei/ghes.c
> +++ b/drivers/acpi/apei/ghes.c
> @@ -1405,7 +1405,7 @@ static int ghes_remove(struct platform_device *ghes_dev)
> ghes->flags |= GHES_EXITING;
> switch (generic->notify.type) {
> case ACPI_HEST_NOTIFY_POLLED:
> - del_timer_sync(&ghes->timer);
> + del_timer_shutdown(&ghes->timer);
> break;
> case ACPI_HEST_NOTIFY_EXTERNAL:
> free_irq(ghes->irq, ghes);
> --
> 2.35.1