lkml.org 
[lkml]   [2007]   [Feb]   [3]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: A CodingStyle suggestion
Ahmed S. Darwish wrote:
> On Sat, Feb 03, 2007 at 11:56:16PM +0100, Richard Knutsson wrote:
>
>> Ahmed S. Darwish wrote:
>>
>>> Hi all,
>>>
>>> In CodingStyle Chapter 16 "Function return value and names", why not
>>> adding a comment about the favorable community way of checking the return
>>> value. ie:
>>>
>>> ret = do_method();
>>> if (ret) {
>>> /* deal with error */
>>> }
>>>
>>> and not other ways like:
>>>
>>> if (do_method()) or
>>>
>> So:
>>
>> if (is_true()) {
>> /* do something */
>> }
>>
>> is alright then? If so, I agree, but please make it real clear in the
>> document ;)
>>
>
> Good catch :). A small grep of `access_ok' reveals that it's always used in the
> form of:
> if (!access_ok()) { .. }
>
> I can conclude that verbal/imperative methods like `kmalloc, add_work' be
> checked as:
> ret = do_work();
> if (ret) { ... }
> and predicate methods like `acess_ok, pci_dev_present' be checked like:
> if (!access_ok) { ... }
> if (pci_dev_present) { ...}
>
> Any comments ?
>
Not really, I agree on this :)

Richard Knutsson

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2007-02-04 01:43    [W:0.086 / U:0.068 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site