linux-kernel - [PATCH v2 0/2] thermal: rcar: Fix crash and restore symmetry

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Message-Id: <1424705845-17726-1-git-send-email-geert+renesas@glider.be>
Date:	Mon, 23 Feb 2015 16:37:23 +0100
From:	Geert Uytterhoeven <geert+renesas@...der.be>
To:	Zhang Rui <rui.zhang@...el.com>,
	Eduardo Valentin <edubezval@...il.com>
Cc:	linux-pm@...r.kernel.org, linux-sh@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	Geert Uytterhoeven <geert+renesas@...der.be>
Subject: [PATCH v2 0/2] thermal: rcar: Fix crash and restore symmetry

	Hi,

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, after a soft
power-on reset using either the rmobile-reset driver, or the RESETA_N
button on the ape6evm board.  I could not trigger it on r8a7791.
I haven't tested this on any other r8a779x, or on r8a7779.

This was tested on r8a73a4/ape6evm (fixes the crash) and
r8a7791/koelsch (crash never seen).

Thanks for applying!

Geert Uytterhoeven (2):
  thermal: rcar: Fix race condition between init and interrupt
  thermal: rcar: Make error and remove paths symmetrical with init

 drivers/thermal/rcar_thermal.c | 26 +++++++++++---------------
 1 file changed, 11 insertions(+), 15 deletions(-)

-- 
1.9.1

Gr{oetje,eeting}s,

						Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@...ux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
							    -- Linus Torvalds
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