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media: platform: mtk-mdp3: fix NULL deref on failed SCP lookup

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Add the missing sanity check after looking up the SCP to avoid
dereferencing a NULL-pointer in case its driver has not yet been bound.

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>
Signed-off-by: Nicolas Dufresne <nicolas.dufresne@collabora.com>
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
This commit is contained in:
Johan Hovold 2026-07-06 08:59:27 +02:00 committed by Hans Verkuil
parent 55793e4665
commit 90368323fb
1 changed files with 5 additions and 0 deletions
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5
drivers/media/platform/mediatek/mdp3/mtk-mdp3-core.c
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@ -296,6 +296,11 @@ static int mdp_probe(struct platform_device *pdev)
mdp->scp = platform_get_drvdata(mm_pdev);
}
if (!mdp->scp) {
ret = -EPROBE_DEFER;
goto err_destroy_clock_wq;
}
mdp->rproc_handle = scp_get_rproc(mdp->scp);
dev_dbg(&pdev->dev, "MDP rproc_handle: %p", mdp->rproc_handle);