Re: [PATCH 1/5] ACPI: ec: Do request_region outside WARN()

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Applied.

thanks,
Len Brown, Intel Open Source Technology Center

On 02/06/2012 11:17 AM, Andi Kleen wrote:

> WARN() is not supposed to have side effects, so move the request_regions
> outside.
> 
> Signed-off-by: Andi Kleen <ak@xxxxxxxxxxxxxxx>
> ---
>  drivers/acpi/ec.c |    8 ++++----
>  1 files changed, 4 insertions(+), 4 deletions(-)
> 
> diff --git a/drivers/acpi/ec.c b/drivers/acpi/ec.c
> index b19a18d..3268dcf 100644
> --- a/drivers/acpi/ec.c
> +++ b/drivers/acpi/ec.c
> @@ -812,10 +812,10 @@ static int acpi_ec_add(struct acpi_device *device)
>  		first_ec = ec;
>  	device->driver_data = ec;
>  
> -	WARN(!request_region(ec->data_addr, 1, "EC data"),
> -	     "Could not request EC data io port 0x%lx", ec->data_addr);
> -	WARN(!request_region(ec->command_addr, 1, "EC cmd"),
> -	     "Could not request EC cmd io port 0x%lx", ec->command_addr);
> +	ret = !!request_region(ec->data_addr, 1, "EC data");
> +	WARN(!ret, "Could not request EC data io port 0x%lx", ec->data_addr);
> +	ret = !!request_region(ec->command_addr, 1, "EC cmd");
> +	WARN(!ret, "Could not request EC cmd io port 0x%lx", ec->command_addr);
>  
>  	pr_info(PREFIX "GPE = 0x%lx, I/O: command/status = 0x%lx, data = 0x%lx\n",
>  			  ec->gpe, ec->command_addr, ec->data_addr);


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