Re: [RFC][PATCH v3 05/33] timers: ACPI: Use timer_shutdown_sync() before freeing timer

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On Fri, Nov 04, 2022 at 01:40:58AM -0400, Steven Rostedt wrote:
> From: "Steven Rostedt (Google)" <rostedt@xxxxxxxxxxx>
> 
> Before a timer is freed, timer_shutdown_sync() 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>
> ---
>  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 9952f3a792ba..9a0e41c21cf9 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);
> +		timer_shutdown_sync(&ghes->timer);
>  		break;
>  	case ACPI_HEST_NOTIFY_EXTERNAL:
>  		free_irq(ghes->irq, ghes);
> -- 
> 2.35.1


Acked-by: Jarkko Sakkinen <jarkko@xxxxxxxxxx>

BR, Jarkko



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