linux-kernel - Re: [PATCH] soc/tegra: pmc: fix child-node lookup

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Message-ID: <20180322142432.GA5853@ulmo>
Date:   Thu, 22 Mar 2018 15:24:32 +0100
From:   Thierry Reding <thierry.reding@...il.com>
To:     Johan Hovold <johan@...nel.org>
Cc:     Jonathan Hunter <jonathanh@...dia.com>,
        linux-tegra@...r.kernel.org, linux-kernel@...r.kernel.org,
        stable <stable@...r.kernel.org>,
        Mikko Perttunen <mperttunen@...dia.com>
Subject: Re: [PATCH] soc/tegra: pmc: fix child-node lookup

On Wed, Nov 15, 2017 at 10:44:58AM +0100, Johan Hovold wrote:
> Fix child-node lookup during probe, which ended up searching the whole
> device tree depth-first starting at the parent rather than just matching
> on its children.
> 
> To make things worse, the parent pmc node could end up being prematurely
> freed as of_find_node_by_name() drops a reference to its first argument.
> 
> Fixes: 3568df3d31d6 ("soc: tegra: Add thermal reset (thermtrip) support to PMC")
> Cc: stable <stable@...r.kernel.org>     # 4.0
> Cc: Mikko Perttunen <mperttunen@...dia.com>
> Signed-off-by: Johan Hovold <johan@...nel.org>
> ---
>  drivers/soc/tegra/pmc.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)

Applied, thanks.

Thierry

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