linux-kernel - Re: [PATCH] pinctrl: sunxi: Free configs in pinctrl

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Date:   Fri, 11 Nov 2016 09:29:14 +0100
From:   Maxime Ripard <maxime.ripard@...e-electrons.com>
To:     Chen-Yu Tsai <wens@...e.org>
Cc:     Linus Walleij <linus.walleij@...aro.org>,
        linux-gpio@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org, linux-sunxi@...glegroups.com
Subject: Re: [PATCH] pinctrl: sunxi: Free configs in pinctrl_map only if it
 is a config map

On Fri, Nov 11, 2016 at 10:35:10AM +0800, Chen-Yu Tsai wrote:
> In the recently refactored sunxi pinctrl library, we are only allocating
> one set of pin configs for each pinmux setting node. When the pinctrl_map
> structure is freed, the pin configs should also be freed. However the
> code assumed the first map would contain the configs, which actually
> never happens, as the mux function map gets added first.
> 
> The proper way to do this is to look through all the maps and free the
> first one whose type is actually PIN_MAP_TYPE_CONFIGS_GROUP.
> 
> Also slightly expand the comment explaining this.
> 
> Fixes: f233dbca6227 ("pinctrl: sunxi: Rework the pin config building code")
> Signed-off-by: Chen-Yu Tsai <wens@...e.org>

Acked-by: Maxime Ripard <maxime.ripard@...e-electrons.com>

Thanks!
Maxime

-- 
Maxime Ripard, Free Electrons
Embedded Linux and Kernel engineering
http://free-electrons.com

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