Re: [PATCH] panasonic-laptop: fix acpi_pcc_write_sset return value

[Dmitry Torokhov <dmitry.torokhov@gmail.com>]

Hi Axel,

On Tue, Jul 06, 2010 at 02:46:58PM +0800, Axel Lin wrote:
> In current implementation, acpi_pcc_write_sset return 1
> if write is successful, 0 if write is failed.
> But all the callers consider acpi_pcc_write_sset return 0
> if write is successful and return negative if write is failed.
>

Yes, I think most of the times we see AE_* outside of
drivers/acpi/acpica it is an error; we should be using standard eoro
codes instead.

> This patch changes the implementation of acpi_pcc_write_sset to
> return 0 if write is successful, -1 if write is failed.

Why not use something better than -1, maybe -EIO, and the propagate that
return code up the stack?

Thanks.

-- 
Dmitry