Re: alpha: Checking source code positions for the setting of error codes

[SF Markus Elfring]

>> A local variable was set to an error code in two cases before a concrete
>> error situation was detected. Thus move the corresponding assignment into
>> an if branch to indicate a software failure there.
>>
>> This issue was detected by using the Coccinelle software.
> 
> Why the hell is that an issue?

* Can misplaced variable assignments result in unwanted run time consequences
  because of the previous approach for a control flow specification?

* How do you think about to achieve that error codes will only be set
  after a specific software failure was detected?


> It's a common enough idiom,

Are corresponding implementation details worth for another look?


> and while these functions are far from being hot paths,
> blind patches like that are very much to be discouraged.  NAK.

Thanks for your feedback.

Regards,
Markus
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