Re: [PATCH] security: keys: remove redundant assignment to key_ref

From: David Howells
Date: Wed Dec 06 2017 - 09:50:38 EST


James Morris <james.l.morris@xxxxxxxxxx> wrote:

> I think a general cleanup in that function to make all of these follow the
> pattern:
>
> if (something) {
> key_ref = ERR_PTR(-error);
> goto error;
> }
>
> rather than unconditionally setting the error first, would be better, but
> this is a clear enough fix on its own.

There's a preference in Linux to use:

key_ref = ERR_PTR(-error);
if (something)
goto error;

instead because it uses less vertical space. It might originally have been
promulgated by Linus, but I don't remember. Though you do have a point - your
way makes error handling less subject breakage from code rearrangement.

David