[U-Boot] [PATCH] test/overlay: Fix various malloc/free leaks
Tom Rini
trini at konsulko.com
Tue Sep 26 19:13:55 UTC 2017
On Tue, Sep 26, 2017 at 06:28:40PM +0000, Langer, Thomas wrote:
> Hello Tom,
>
> I just read some days ago about the kernel Coding-Style:
>
> <quote>
> Choose label names which say what the goto does or why the goto exists. An
> example of a good name could be ``out_free_buffer:`` if the goto frees ``buffer``.
> Avoid using GW-BASIC names like ``err1:`` and ``err2:``, as you would have to
> renumber them if you ever add or remove exit paths, and they make correctness
> difficult to verify anyway.
> </quote>
>
> Does is make sense to follow this for U-Boot also and fix the names of the labels below?
>
> >
> > free(fdt_overlay_stacked_copy);
> > +err3:
> > free(fdt_overlay_copy);
> > +err2:
> > free(fdt_base_copy);
> > +err1:
> > free(uts);
> >
We have in U-Boot a number of cases of both, and the majority (from a
quick read on 'git grep goto' is of the less descriptive case. I can
certainly see how descriptive goto labels make more sense in the case of
large functions and especially complicated short-cuts. Do you think
'malloc_base_copy_failed', 'malloc_overlay_copy_failed' and
'malloc_stacked_copy_failed' make the code more readable?
--
Tom
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