Re: [Cocci] [PATCH v2] coccinelle: api: check for propagation of error from platform_get_irq

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On Sun, 27 Dec 2015, SF Markus Elfring wrote:

> > The error return value of platform_get_irq seems to often get dropped.
> 
> How do you think about any more fine-tuning here?
> 
> Commit message:
> * … of the platform_get_irq() function seems to get dropped too often.
> 
> * Why do you concentrate on a single function name?
>   Do you plan to extend this source code analysis approach?
> 
> 
> > +@script:python r_report depends on report@
> > +j0 << r.j0;
> > +j1 << r.j1;
> > +@@
> > +
> > +msg = "Propagate return value of platform_get_irq around line %s." % (j1[0].line)
> 
> Are there more unchecked return values which are interesting
> for further considerations?
> https://cwe.mitre.org/data/definitions/252.html

The value is not unchecked.  I made a specific rule because the specific 
problem is quite common.

julia

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