From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 3F9C233E345 for ; Mon, 5 Jan 2026 13:24:38 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1767619479; cv=none; b=VkZi09NZUAOXVIaXY/NGiZSqQm7HBpEkaUyOSUIfYVCp/eBkmqMUdOmU3TBo356RBzcH2rixeXov1zMFBMHYSGfY4hL38CX9JJnwhDkioU6Gkambzcfu6ubk20pjL8HOuI5wnIG8jFm684lGyByFoxwybivbr2AhWQjeenIWvpo= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1767619479; c=relaxed/simple; bh=zdCH0sSl2fOxk/DYGSqqFGtlE8IbEtXPyBvKCDGI2Bc=; h=Subject:To:Cc:From:Date:Message-ID:MIME-Version:Content-Type; b=qr8U+wNFAWANbkjhuCx3jwx6DPCLi5JUnZjWWh/VGvwFazqjwi3algIF5bj2Ofbza+TjgVa7GFXX1o4U68BGit6EWCnxm9z4EX/ZK+YmHLtRHYrMgH9VSw3l3tWuPf5F2t4NXKrrhbkJNIBDTj7W8/lRisQpEHHvXaDDsHsNNz8= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=HgYybaNr; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="HgYybaNr" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 64540C116D0; Mon, 5 Jan 2026 13:24:38 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1767619478; bh=zdCH0sSl2fOxk/DYGSqqFGtlE8IbEtXPyBvKCDGI2Bc=; h=Subject:To:Cc:From:Date:From; b=HgYybaNrmXKsyBEMpBR4Y2LOXx/pQ9oSGZmRbs1e9dmaDRufHP3fd+D1wANAJOwVf MD+tQ0aHj6msKpWHdRzNpuGN7gO2lLBKbzRBA9NL98xC7pCntFwCZUENIfncg6OJc3 86Wi3pZhYx7hiu2C8NsC5MZOqeULMfOxfMPUfMZc= Subject: FAILED: patch "[PATCH] drm/mediatek: Fix probe device leaks" failed to apply to 6.6-stable tree To: johan@kernel.org,angelogioacchino.delregno@collabora.com,chunkuang.hu@kernel.org Cc: From: Date: Mon, 05 Jan 2026 14:24:35 +0100 Message-ID: <2026010535-promptly-succulent-ecc2@gregkh> Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=ANSI_X3.4-1968 Content-Transfer-Encoding: 8bit The patch below does not apply to the 6.6-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 . 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-6.6.y git checkout FETCH_HEAD git cherry-pick -x 2a2a04be8e869a19c9f950b89b1e05832a0f7ec7 # git commit -s git send-email --to '' --in-reply-to '2026010535-promptly-succulent-ecc2@gregkh' --subject-prefix 'PATCH 6.6.y' HEAD^.. Possible dependencies: thanks, greg k-h ------------------ original commit in Linus's tree ------------------ >From 2a2a04be8e869a19c9f950b89b1e05832a0f7ec7 Mon Sep 17 00:00:00 2001 From: Johan Hovold Date: Tue, 23 Sep 2025 17:23:38 +0200 Subject: [PATCH] drm/mediatek: Fix probe device leaks Make sure to drop the reference taken to each component device during probe on probe failure (e.g. probe deferral) and on driver unbind. Fixes: 6ea6f8276725 ("drm/mediatek: Use correct device pointer to get CMDQ client register") Cc: stable@vger.kernel.org # 5.12 Cc: Chun-Kuang Hu Signed-off-by: Johan Hovold Reviewed-by: AngeloGioacchino Del Regno Link: https://patchwork.kernel.org/project/dri-devel/patch/20250923152340.18234-4-johan@kernel.org/ Signed-off-by: Chun-Kuang Hu diff --git a/drivers/gpu/drm/mediatek/mtk_ddp_comp.c b/drivers/gpu/drm/mediatek/mtk_ddp_comp.c index 31d67a131c50..9672ea1f91a2 100644 --- a/drivers/gpu/drm/mediatek/mtk_ddp_comp.c +++ b/drivers/gpu/drm/mediatek/mtk_ddp_comp.c @@ -621,6 +621,13 @@ int mtk_find_possible_crtcs(struct drm_device *drm, struct device *dev) return ret; } +static void mtk_ddp_comp_put_device(void *_dev) +{ + struct device *dev = _dev; + + put_device(dev); +} + static void mtk_ddp_comp_clk_put(void *_clk) { struct clk *clk = _clk; @@ -656,6 +663,10 @@ int mtk_ddp_comp_init(struct device *dev, struct device_node *node, struct mtk_d } comp->dev = &comp_pdev->dev; + ret = devm_add_action_or_reset(dev, mtk_ddp_comp_put_device, comp->dev); + if (ret) + return ret; + if (type == MTK_DISP_AAL || type == MTK_DISP_BLS || type == MTK_DISP_CCORR ||