The patch below does not apply to the 5.15-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to stable@vger.kernel.org.
To reproduce the conflict and resubmit, you may use the following commands:
git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-5.15.y git checkout FETCH_HEAD git cherry-pick -x 5e49200593f331cd0629b5376fab9192f698e8ef # <resolve conflicts, build, test, etc.> git commit -s git send-email --to 'stable@vger.kernel.org' --in-reply-to '2026010516-unfrosted-serotonin-e7b7@gregkh' --subject-prefix 'PATCH 5.15.y' HEAD^..
Possible dependencies:
thanks,
greg k-h
------------------ original commit in Linus's tree ------------------
From 5e49200593f331cd0629b5376fab9192f698e8ef Mon Sep 17 00:00:00 2001 From: Johan Hovold johan@kernel.org Date: Tue, 23 Sep 2025 17:23:37 +0200 Subject: [PATCH] drm/mediatek: Fix probe memory leak
The Mediatek DRM driver allocates private data for components without a platform driver but as the lifetime is tied to each component device, the memory is never freed.
Tie the allocation lifetime to the DRM platform device so that the memory is released on probe failure (e.g. probe deferral) and when the driver is unbound.
Fixes: c0d36de868a6 ("drm/mediatek: Move clk info from struct mtk_ddp_comp to sub driver private data") Cc: stable@vger.kernel.org # 5.12 Cc: CK Hu ck.hu@mediatek.com Signed-off-by: Johan Hovold johan@kernel.org Reviewed-by: AngeloGioacchino Del Regno angelogioacchino.delregno@collabora.com Link: https://patchwork.kernel.org/project/dri-devel/patch/20250923152340.18234-3-... Signed-off-by: Chun-Kuang Hu chunkuang.hu@kernel.org
diff --git a/drivers/gpu/drm/mediatek/mtk_ddp_comp.c b/drivers/gpu/drm/mediatek/mtk_ddp_comp.c index 0264017806ad..31d67a131c50 100644 --- a/drivers/gpu/drm/mediatek/mtk_ddp_comp.c +++ b/drivers/gpu/drm/mediatek/mtk_ddp_comp.c @@ -671,7 +671,7 @@ int mtk_ddp_comp_init(struct device *dev, struct device_node *node, struct mtk_d type == MTK_DSI) return 0;
- priv = devm_kzalloc(comp->dev, sizeof(*priv), GFP_KERNEL); + priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL); if (!priv) return -ENOMEM;