Re: [0/2] powerpc/powernv/vas: Adjustments for two function implementations

[Markus Elfring]

>>>   One function call less in vas_window_alloc() after error detection
>>
>> https://patchwork.ozlabs.org/project/linuxppc-dev/patch/1f1c21cf-c34c-418c-b00c-8e6474f12612@xxxxxx/
>
> It introduced a new goto and label to avoid a kfree(NULL) call, but
> kfree() explicitly accepts NULL and handles it. So it complicates the
> source code for no gain.

I proposed to avoid such a redundant function call for the affected
exception handling.


>>>   Return directly after a failed kasprintf() in map_paste_region()
>>
>> https://patchwork.ozlabs.org/project/linuxppc-dev/patch/f46f04bc-613c-4e98-b602-4c5120556b09@xxxxxx/
>
> Basically the same reasoning. And it also changes the function from
> having two return paths (success and error), to three.

See also a corresponding advice once more from the section “7) Centralized exiting of functions”:
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/Documentation/process/coding-style.rst?h=v6.9-rc4#n532

Regards,
Markus