[U-Boot] [PATCH V2] mvsata_ide: adjust port init sequence

[Albert ARIBAUD <albert.aribaud@free.fr>]

Le 07/09/2010 16:06, Wolfgang Denk a ?crit :

>> Negative always represents errors,
>> whereas positive may represent some valid return state.
>
> He. This is _not_quite_ correct. Not in U-Boot, and not in genreal.
>
> [But your comment asking for a negative return code is valid, of
> course.]

I'm a bit lost at the logic of this last sentence. If errors are not 
always represented as negative return values, and especially so in 
U-boot, then what is the rationale for supporting a request for 
specifically negative error return values, rather than positive, here? 
Not that I mind much -- as I said, ide_init() does not mind, and that's 
my reference -- and I'll happily put negative error codes in V3, but I 
like to understand why people want things.

Amicalement,
-- 
Albert.