Re: Changing the return value of xxx_attach() from void to int.

[Paul Goyette <paul%whooppee.com@localhost>]

On Thu, Jun 23, 2016 at 07:40:14PM +0900, Masanobu SAITOH wrote:
>  As you know, the return value of device driver's attach function is void.
> I've thought that we should change it to int for many years. I believe I'm
> not the only person.

I have always been surprised to see that we don't already have a return 
value.  I really think that a meaningful code, more than success/fail, 
is useful.

I'd also want to make sure that the change "plays nicely" with drivers 
for pseudo-devices as well as devices.  I'd also want to see that the 
change doesn't break any modular drivers;  especially for pseudo-devs 
which have a some interesting attach() issues when built as modules.


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