linux-kernel - Re: [PATCH] leds: netxbig: Fix refcount leak in netxbig_leds_get_of

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Date:   Thu, 12 May 2022 08:53:24 +0200
From:   Pavel Machek <pavel@....cz>
To:     Miaoqian Lin <linmq006@...il.com>
Cc:     Linus Walleij <linus.walleij@...aro.org>,
        linux-leds@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] leds: netxbig: Fix refcount leak in
 netxbig_leds_get_of_pdata

Hi!

> of_parse_phandle() returns a node pointer with refcount
> incremented, we should use of_node_put() on it when not needed anymore.
> When of_find_device_by_node() fails, of_node_put() is missing.

Can you take a look at the code and simplify it? AFAICT the node_put
should go right after

       gpio_ext_pdev = of_find_device_by_node(gpio_ext_np);


. Best regards,
								Pavel
-- 
People of Russia, stop Putin before his war on Ukraine escalates.

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