From mboxrd@z Thu Jan 1 00:00:00 1970 Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.remote-ip=100.103.45.18 ARC-Seal: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; cv=none; t=1794047478; b=qsMHbi/zs6MvMHNwz4ieD2Mn0e1c62zNACEMXWxC05kth362h44LvFE6zcdT6miPqdNo 648Fpv4KWTfvN2z/W3NPRkCfXRo0BxNKFD9Sy7YP7ji2Yd6xy48DF1bvq6g0bzPUCjmgt /K5RG5kHyxSDaCAvv5o0mq5Lk/aezwzoGMSRUxE40LUcYn/sG/J6fZ2IL671vxcOTGuRz /IJN/LGj/2LiN9OfyStQV2ArS3tdHMmpwfmokCz30juF9kK1ZNxXpxqkZkObKRw1cIKlC L92HlFAI+FaSyoblYQXzEjdk5nbc9fheq/PNg52glX/JZW55/p8EaD9lffB2AzkR/+w== ARC-Message-Signature: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1794047478; h=Received:DKIM-Signature:From:To:Cc:Subject:Date:Message-ID:X-Mailer: MIME-Version:Content-Type:Content-Transfer-Encoding; bh=HxOqliNGtdKLLjndk5h5olYkyRuRxErO/mWSe/r6rgo=; b=f9k/0Wd4W/d/TvqBPpqjoMnFmt03mvf+3PxBsvxlplqjzB+GphbF8PrAYbyfNAMl+AGy ilKrC90Wr37QWA8nI9/h0VJNQ8QiWqyrGSBk8+bHeKvJMIXppbtqNjjFxBshCqdZGDD1/ aDQXGml13EsoMFwkDwGBhO9ly1p3ijFwuguYbrypxBzf38+kuiat+qs1BHMqcIJPJirp2 /cBaPUNt+db3P8pMFnPF5yQD0QBGJG/XBkcaEAZ/VCFdJu+uooTh1ZRd+Mr+aOAfRfS0L 7SjHHU7jgBzrU4brGdqc8/LqlH0viyw8x9JXiMs2wcK6fuKBiM2UZTQTEQ0cXhzGy9g== ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20260515 header.b=UWgoZ0EX; arc=none smtp.remote-ip=100.103.45.18 Received: from smtp.kernel.org (quasi.space.kernel.org [100.103.45.18]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (prime256v1)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 49A9F606A33E for ; Sat, 7 Nov 2026 10:31:18 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20260515 header.b=UWgoZ0EX Received: by smtp.kernel.org (Postfix) with ESMTPSA id 5BCD61F008A3; Sat, 7 Nov 2026 10:31:17 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1794047477; bh=HxOqliNGtdKLLjndk5h5olYkyRuRxErO/mWSe/r6rgo=; h=From:To:Cc:Subject:Date; b=UWgoZ0EXVv0wVTtWdiMxBdLgL79Exzpr6FtzT/O/rJEEhN24Z5F16GJxJnolxZetG BbEyuW9GFHBXTrPcCBgVWMM/wIJ/stUNr7cr1YMpgyPInpqClrbP2NPn3OSqhHfNL7 Tt7MHjRqLBo3BvT5qRxF8CuIPRZErkfvQ3I54pUWzqsfKUPqiS9rO1bAuuLQEJrEeV rKvdFZ33XN92eW9zXoCrNEl3QYKfT4sAqzi6NbQwDJgtsuz3dPp6Ignm3OsZMN5CDr mSIp2jOS2tpuE2sALYQKdzHDot8rL4LcFnhTxC4jFBjSnO2I9zYvvEVgygOE+tNkyt 4QPbCFtya5AoQ== From: Sasha Levin To: fanwu01@zju.edu.cn, nicolas.dufresne@collabora.com, hverkuil+cisco@kernel.org Cc: stable@vger.kernel.org Subject: FAILED: patch "[PATCH] media: rockchip: rga: quiesce IRQ before releasing m2m state" failed to apply to 6.6-stable tree Date: Sat, 7 Nov 2026 05:31:16 -0500 Message-ID: <20261107053116-failed-6.6-a875c43dd95e@kernel.org> X-Mailer: git-send-email 2.53.0 X-Mailing-List: stable@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 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 a875c43dd95ee4f9c4e3e5ae1cb8362cc6d7817d # git commit -s git send-email --to '' --in-reply-to '20261107053116-failed-6.6-a875c43dd95e@kernel.org' --subject-prefix 'PATCH 6.6.y' 'HEAD^..' Thanks, Sasha ------------------ original commit in Linus's tree ------------------ >From a875c43dd95ee4f9c4e3e5ae1cb8362cc6d7817d Mon Sep 17 00:00:00 2001 From: Fan Wu Date: Sat, 4 Jul 2026 08:46:59 +0000 Subject: [PATCH] media: rockchip: rga: quiesce IRQ before releasing m2m state rga_remove() releases the m2m state before the IRQ is freed. The IRQ is devm-managed and is only released once rga_remove() returns, so rga_isr() can still run while the m2m device state is being torn down. Store the IRQ number in struct rockchip_rga, unregister the video device first, and free the IRQ before releasing the m2m state so the handler cannot run against the freed state. Fixes: f7e7b48e6d79 ("[media] rockchip/rga: v4l2 m2m support") Cc: stable@vger.kernel.org Signed-off-by: Fan Wu Reviewed-by: Nicolas Dufresne Signed-off-by: Nicolas Dufresne Signed-off-by: Hans Verkuil --- drivers/media/platform/rockchip/rga/rga.c | 4 +++- drivers/media/platform/rockchip/rga/rga.h | 1 + 2 files changed, 4 insertions(+), 1 deletion(-) diff --git a/drivers/media/platform/rockchip/rga/rga.c b/drivers/media/platform/rockchip/rga/rga.c index b3cb6bf8eb863..fbc99462dce28 100644 --- a/drivers/media/platform/rockchip/rga/rga.c +++ b/drivers/media/platform/rockchip/rga/rga.c @@ -797,6 +797,7 @@ static int rga_probe(struct platform_device *pdev) ret = irq; goto err_put_clk; } + rga->irq = irq; ret = devm_request_irq(rga->dev, irq, rga_isr, rga_has_internal_iommu(rga) ? 0 : IRQF_SHARED, @@ -876,8 +877,9 @@ static void rga_remove(struct platform_device *pdev) v4l2_info(&rga->v4l2_dev, "Removing\n"); - v4l2_m2m_release(rga->m2m_dev); video_unregister_device(rga->vfd); + devm_free_irq(rga->dev, rga->irq, rga); + v4l2_m2m_release(rga->m2m_dev); v4l2_device_unregister(&rga->v4l2_dev); pm_runtime_disable(rga->dev); diff --git a/drivers/media/platform/rockchip/rga/rga.h b/drivers/media/platform/rockchip/rga/rga.h index bd431534d0d39..7bcdf36c11b4d 100644 --- a/drivers/media/platform/rockchip/rga/rga.h +++ b/drivers/media/platform/rockchip/rga/rga.h @@ -73,6 +73,7 @@ struct rockchip_rga { struct device *dev; struct regmap *grf; void __iomem *regs; + int irq; struct clk_bulk_data *clks; int num_clks; struct rockchip_rga_version version; -- 2.53.0