Re: [bug report] Memory leak from acpi_ev_install_space_handler()

[John Garry]

On 18/05/2021 22:48, Kaneda, Erik wrote:
> Hi John,
>
> > I don't mind looking further if requested.
> Someone else reported this as well. 

I noticed. By chance, it was my close colleague Xiang Chen.

Could you try the patch below? I think it might help fix this issue..

It looks like the same problem, and you provided the same solution, so 
we can look to test it.

Thanks

> Thanks,
> Erik
>
> diff --git a/drivers/acpi/acpica/utdelete.c b/drivers/acpi/acpica/utdelete.c
> index 624a26794d55..e5ba9795ec69 100644
> --- a/drivers/acpi/acpica/utdelete.c
> +++ b/drivers/acpi/acpica/utdelete.c
> @@ -285,6 +285,14 @@ static void acpi_ut_delete_internal_obj(union acpi_operand_object *object)
>                  }
>                  break;
>
> +       case ACPI_TYPE_LOCAL_ADDRESS_HANDLER:
> +
> +               ACPI_DEBUG_PRINT((ACPI_DB_ALLOCATIONS,
> +                                 "***** Address handler %p\n", object));
> +
> +               acpi_os_delete_mutex(object->address_space.context_mutex);
> +               break;
> +
>          default:
>
>                  break;