linux-kernel - Re: [PATCH 0/2] thermal: rcar: Fix crash and restore symmetry

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Message-ID: <87twz1p5z8.wl%kuninori.morimoto.gx@renesas.com>
Date:	Thu, 5 Feb 2015 00:16:22 +0000
From:	Kuninori Morimoto <kuninori.morimoto.gx@...esas.com>
To:	Geert Uytterhoeven <geert+renesas@...der.be>
CC:	Zhang Rui <rui.zhang@...el.com>,
	Eduardo Valentin <edubezval@...il.com>,
	<linux-pm@...r.kernel.org>,
	<linux-shvger.kernel.org@...san.of.borg>,
	<linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 0/2] thermal: rcar: Fix crash and restore symmetry


Hi Geert

> This series fixes an intermittent crash (NULL pointer dereference) in
> the rcar-thermal driver due to a race condition, and restores symmetry
> in the error and remove paths.
> 
> So far I could trigger the race condition only on r8a73a4, and only
> after a soft power-on reset using the rmobile-reset driver, which is
> queued for v3.20. I could not trigger it on r8a7791.
> I haven't tested this on any other r8a779x, or on r8a7779.
> Hence I'm not sure it's worthwhile adding this to -stable yet.
> 
> This was tested on r8a73a4/ape6evm (fixes the crash) and
> r8a7791/koelsch (crash not seen).

Indeed it seems bug. Thank you for your patch

Acked-by: Kuninori Morimoto <kuninori.morimoto.gx@...esas.com>
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