media: platform: mtk-mdp3: fix device leaks at probe

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commit 8f6f3aa215 upstream.

Make sure to drop the references taken when looking up the subsys
devices during probe on probe failure (e.g. probe deferral) and on
driver unbind.

Similarly, drop the SCP device reference after retrieving its platform
data during probe to avoid leaking it.

Note that holding a reference to a device does not prevent its driver
data from going away.

Fixes: 61890ccaef ("media: platform: mtk-mdp3: add MediaTek MDP3 driver")
Cc: stable@vger.kernel.org	# 6.1
Cc: Moudy Ho <moudy.ho@mediatek.com>
Signed-off-by: Johan Hovold <johan@kernel.org>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Signed-off-by: Nicolas Dufresne <nicolas.dufresne@collabora.com>
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

...

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Johan Hovold 2025-09-24 16:39:19 +02:00 • committed by Greg Kroah-Hartman

parent 634a5a133a

commit db4d27e6bb

1 changed files with 14 additions and 0 deletions

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drivers/media/platform/mediatek/mdp3/mtk-mdp3-core.c

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