linux-kernel - Re: [PATCH] arch: mips: generic: Add missing of_node

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Date:   Tue, 21 Jun 2022 17:14:38 +0200
From:   Thomas Bogendoerfer <tsbogend@...ha.franken.de>
To:     Liang He <windhl@....com>
Cc:     miodrag.dinic@...s.com, paulburton@...nel.org,
        linux-mips@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] arch: mips: generic: Add missing of_node_put() in
 board-ranchu.c

On Wed, Jun 15, 2022 at 10:11:23PM +0800, Liang He wrote:
> In ranchu_measure_hpt_freq(), of_find_compatible_node() will return
> a node pointer with refcount incremented. We should use of_put_node()
> when it is not used anymore.
> 
> Signed-off-by: Liang He <windhl@....com>
> ---
>  arch/mips/generic/board-ranchu.c | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/arch/mips/generic/board-ranchu.c b/arch/mips/generic/board-ranchu.c
> index a89aaad59cb1..930c45041882 100644
> --- a/arch/mips/generic/board-ranchu.c
> +++ b/arch/mips/generic/board-ranchu.c
> @@ -44,6 +44,7 @@ static __init unsigned int ranchu_measure_hpt_freq(void)
>  		      __func__);
>  
>  	rtc_base = of_iomap(np, 0);
> +	of_node_put(np);
>  	if (!rtc_base)
>  		panic("%s(): Failed to ioremap Goldfish RTC base!", __func__);
>  
> -- 
> 2.25.1

applied to mips-fixes.

Thomas.

-- 
Crap can work. Given enough thrust pigs will fly, but it's not necessarily a
good idea.                                                [ RFC1925, 2.3 ]