linux-kernel - Re: [patch] CodingStyle: add some more error handling guidelines

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Date:	Wed, 03 Dec 2014 13:31:19 +0100
From:	SF Markus Elfring <elfring@...rs.sourceforge.net>
To:	Dan Carpenter <dan.carpenter@...cle.com>,
	Julia Lawall <julia.lawall@...6.fr>
CC:	linux-doc@...r.kernel.org, linux-kernel@...r.kernel.org,
	kernel-janitors@...r.kernel.org, Jonathan Corbet <corbet@....net>,
	OGAWA Hirofumi <hirofumi@...l.parknet.co.jp>,
	Coccinelle <cocci@...teme.lip6.fr>, backports@...r.kernel.org,
	Johannes Berg <johannes@...solutions.net>,
	"Luis R. Rodriguez" <mcgrof@...e.com>
Subject: Re: [patch] CodingStyle: add some more error handling guidelines

> diff --git a/Documentation/CodingStyle b/Documentation/CodingStyle
> index 9f28b14..9c8a234 100644
> --- a/Documentation/CodingStyle
> +++ b/Documentation/CodingStyle
> @@ -392,7 +392,12 @@ The goto statement comes in handy when a function exits from multiple
>  locations and some common work such as cleanup has to be done.  If there is no
>  cleanup needed then just return directly.
>  
> -The rationale is:
> +Choose label names which say what the goto does or why the goto exists.  An
> +[...]  Avoid
> +using GW-BASIC names like "err1:" and "err2:".  Also don't name them after the
> +goto location like "err_kmalloc_failed:"

I find this documentation approach not safe and clear enough so far.

* How should the reference to an other programming language help in the understanding
  of the recommended naming convention for jump labels?

* To which source code place should the word "location" refer to?
  - jump source
  - jump target

Regards,
Markus
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