Re: [PATCH] ACPI/EC: Fix an issue that ec_remove_handlers() is invoked unexpectedly.

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On Monday, December 15, 2014 08:47:52 AM Lv Zheng wrote:
> The ec_remove_handlers() is invoked without checking
> EC_FLAGS_HANDLERS_INSTALLED, this patch enhances this check to avoid issues
> that acpi_disable_gpe() is invoked unexpectedly to reduce the GPE runtime
> count. This may happen when the EC handler installation failed on some
> platforms.
> 
> Reported-by: Venkat Raghavulu <venkat.raghavulu@xxxxxxxxx>
> Signed-off-by: Lv Zheng <lv.zheng@xxxxxxxxx>

Applied, thanks!

> ---
>  drivers/acpi/ec.c |    2 ++
>  1 file changed, 2 insertions(+)
> 
> diff --git a/drivers/acpi/ec.c b/drivers/acpi/ec.c
> index 5f9b74b..1b5853f 100644
> --- a/drivers/acpi/ec.c
> +++ b/drivers/acpi/ec.c
> @@ -844,6 +844,8 @@ static int ec_install_handlers(struct acpi_ec *ec)
>  
>  static void ec_remove_handlers(struct acpi_ec *ec)
>  {
> +	if (!test_bit(EC_FLAGS_HANDLERS_INSTALLED, &ec->flags))
> +		return;
>  	acpi_disable_gpe(NULL, ec->gpe);
>  	if (ACPI_FAILURE(acpi_remove_address_space_handler(ec->handle,
>  				ACPI_ADR_SPACE_EC, &acpi_ec_space_handler)))
> 

-- 
I speak only for myself.
Rafael J. Wysocki, Intel Open Source Technology Center.
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