linux-kernel - [PATCH 0/2] drm/mediatek: fix potential OF node use-after-free

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Message-ID: <20250829090345.21075-1-johan@kernel.org>
Date: Fri, 29 Aug 2025 11:03:43 +0200
From: Johan Hovold <johan@...nel.org>
To: Chun-Kuang Hu <chunkuang.hu@...nel.org>,
	Philipp Zabel <p.zabel@...gutronix.de>
Cc: David Airlie <airlied@...il.com>,
	Simona Vetter <simona@...ll.ch>,
	Matthias Brugger <matthias.bgg@...il.com>,
	AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>,
	Ma Ke <make24@...as.ac.cn>,
	dri-devel@...ts.freedesktop.org,
	linux-mediatek@...ts.infradead.org,
	linux-arm-kernel@...ts.infradead.org,
	linux-kernel@...r.kernel.org,
	Johan Hovold <johan@...nel.org>
Subject: [PATCH 0/2] drm/mediatek: fix potential OF node use-after-free

A recent change (included in the drm pull request for 6.17-rc4) fixed a
device reference leak but also introduced a potential OF node
use-after-free.

This series fixes the new OF node reference imbalance and drops the
unnecessary gotos introduced by the broken fix, effectively reverting
that change in favour of the minimal fix I had previously posted here:

	https://lore.kernel.org/lkml/20250722092722.425-1-johan@kernel.org/

These should go into 6.17 which (soon) has the broken fix, which was
also marked for stable backport.

Johan


Johan Hovold (2):
  drm/mediatek: fix potential OF node use-after-free
  drm/mediatek: clean up driver data initialisation

 drivers/gpu/drm/mediatek/mtk_drm_drv.c | 23 +++++++++--------------
 1 file changed, 9 insertions(+), 14 deletions(-)

-- 
2.49.1