linux-kernel - Re: [PATCH V1] pinctrl:pxa:pinctrl-pxa2xx:- No need of devm functions

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Date:   Sat, 10 Dec 2016 10:19:07 +0100
From:   Robert Jarzmik <robert.jarzmik@...e.fr>
To:     Arvind Yadav <arvind.yadav.cs@...il.com>
Cc:     daniel@...que.org, haojian.zhuang@...il.com,
        linus.walleij@...aro.org, linux-arm-kernel@...ts.infradead.org,
        linux-gpio@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH V1] pinctrl:pxa:pinctrl-pxa2xx:- No need of devm functions

Arvind Yadav <arvind.yadav.cs@...il.com> writes:

Hi Arvind,

> In functions pxa2xx_build_functions, the memory allocated for
> 'functions' is live within the function only. After the
> allocation it is immediately freed with devm_kfree. There is
> no need to allocate memory for 'functions' with devm function
> so replace devm_kcalloc  with kcalloc and devm_kfree with kfree.

That's not very true : the "need" is to spare the "manual" kfree you're adding
in your patch for one, and make it consistent with pxa2xx_build_groups() and
pxa2xx_build_state() for two.

Therefore I'm not very thrilled by this patch and unless it fixes a defect in
the driver I'd rather not have it in.

Cheers.

--
Robert