From: insafonov@gmail.com (Ivan Safonov)
To: kernelnewbies@lists.kernelnewbies.org
Subject: How to mark suspicious code?
Date: Fri, 6 Nov 2015 21:38:18 +0700 [thread overview]
Message-ID: <563CBB5A.6080402@gmail.com> (raw)
In-Reply-To: <20151106050258.GA1599@kroah.com>
On 11/06/2015 12:02 PM, Greg KH wrote:
> On Fri, Nov 06, 2015 at 10:28:31AM +0700, Ivan Safonov wrote:
>> On 11/06/2015 08:58 AM, Greg KH wrote:
>>> On Fri, Nov 06, 2015 at 08:45:46AM +0700, Ivan Safonov wrote:
>>>> Hi all!
>>>>
>>>> How can I mark suspicious code, if I can not fix it?
>>> What do you mean by "mark"?
>> Leave a comment in the code, write a letter to maintainer, etc.
>> What to do?
>>> And also what do you mean by "suspicious"?
>> This is the wrong code that needs to be corrected.
>>> And why can't you fix it?
>>>
>>> we need more details.
>>>
>>> thanks,
>>>
>>> greg k-h
>> Correction of the code will change the behavior of the program.
>> For example:
>>
>> while (1) {
>> if (down_interruptible(&pcmdpriv->cmd_queue_sema))
>> break;
>>
>> if (padapter->bDriverStopped || padapter->bSurpriseRemoved) {
>> ...
>> break;
>> }
>> _next:
>> if (padapter->bDriverStopped || padapter->bSurpriseRemoved) {
>> ...
>> break;
>> }
>> ...
>> if (!pcmd)
>> continue;
>> ...
>> goto _next;
>> }
>> ...
>> up(&pcmdpriv->terminate_cmdthread_sema);
>>
>> Here down_interruptible(sem) in the loop but up(sem) only after the loop.
>> Corrected example below:
>>
>> if (down_interruptible(&pcmdpriv->cmd_queue_sema)) {
>> ...
>> }
>> while (1) {
>> if (padapter->bDriverStopped || padapter->bSurpriseRemoved) {
>> ...
>> break;
>> }
>> _next:
>> if (padapter->bDriverStopped || padapter->bSurpriseRemoved) {
>> ...
>> break;
>> }
>> ...
>> if (!pcmd)
>> continue;
>> ...
>> goto _next;
>> }
>> ...
>> }
>> up(&pcmdpriv->terminate_cmdthread_sema);
>>
>> I can not test the corrected code on the device.
> Make a patch, send it to the people and mailing list that
> get_maintainer.pl shows and the developers will take it from there.
>
Thanks!
prev parent reply other threads:[~2015-11-06 14:38 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <563B58FD.3080406@gmail.com>
2015-11-06 1:45 ` How to mark suspicious code? Ivan Safonov
2015-11-06 1:58 ` Greg KH
2015-11-06 3:28 ` Ivan Safonov
2015-11-06 5:02 ` Greg KH
2015-11-06 5:39 ` Nicholas Mc Guire
2015-11-06 14:38 ` Ivan Safonov [this message]
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