linux-kernel - Re:Re: [PATCH] memory/tegra: Add missing of_node_get() in tegra_emc_find_node_by_ram

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Message-ID: <11875304.61a4.1818a9a66bb.Coremail.windhl@126.com>
Date:   Wed, 22 Jun 2022 16:49:43 +0800 (CST)
From:   "Liang He" <windhl@....com>
To:     "Krzysztof Kozlowski" <krzysztof.kozlowski@...aro.org>
Cc:     thierry.reding@...il.com, jonathanh@...dia.com,
        linux-kernel@...r.kernel.org, linux-tegra@...r.kernel.org
Subject: Re:Re: [PATCH] memory/tegra: Add missing of_node_get() in
 tegra_emc_find_node_by_ram_code



At 2022-06-22 16:41:28, "Krzysztof Kozlowski" <krzysztof.kozlowski@...aro.org> wrote:
>On 22/06/2022 06:28, Liang He wrote:
>> of_find_node_by_name() will decrease the refcount of its first arg and
>> we need to add a of_node_put() to keep refcount balance.
>> 
>> Besides, during the 'for' loop execution, the refcount of 'np' will be
>> automatically increased and decreased. There is no need to call
>> of_node_put() again.
>> 
>> Signed-off-by: Liang He <windhl@....com>
>> ---
>>  drivers/memory/tegra/tegra20-emc.c | 3 ++-
>>  1 file changed, 2 insertions(+), 1 deletion(-)
>> 
>
>The patch was not even compiled... I consider it harmful approach. NAK.
>See: https://lwn.net/Articles/854645/
>
>Best regards,
>Krzysztof

Sorry, Krzysztof.

As the patch is so simple two lines , I thought I can handle it without compiling it.

Thanks very much for your notice about the article and I hope I have not done anyother harmful things.

And I will take care of my patch code in future no matter how simple it is.