Re: [PATCH v1 2/2] platform/x86: think-lmi: Use strreplace() to replace a character by nul

[Andy Shevchenko]

On Mon, Sep 18, 2023 at 04:48:40PM +0200, Rasmus Villemoes wrote:
> On 13/09/2023 11.27, Andy Shevchenko wrote:

> > -		p = strchrnul(value, ';');
> > -		*p = '\0';
> > +		strreplace(value, ';', '\0');
> 
> So how do you know that the string contains at most one ';'? Same for
> all the other replacements. If that's not guaranteed, this is not at all
> equivalent.
> 
> Or maybe the result is just used a normal string afterwards, and it
> doesn't matter at all how the content after the first ';' has been mangled?
> 
> It's certainly not obvious to me that this is correct, but of course I
> know nothing about this code.

If you read the comment and code slightly above you may get that this is not
a problem at all. There are no side effects as the part after first occurrence
of ; is not used and original string is NUL-terminated.

-- 
With Best Regards,
Andy Shevchenko