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=1794049308; b=Lu1+OoVtd48rKuYUoXIAea+rMKmKBH5F6l+qchnn82SZGMIZZs5UaGejNODOZmNg435F uS2+UL2dGdAswi1liRhdIjImGtSofKi2mPUW6u9cocB4cuHTSbHwucX9oCbTUBvMZBr0q mDukPfLcKpb0wW5r+at3tGcGTBrrHcmwIJY3DJ9gJ/bqexmwD88fG9WlziXRhwexs8fiB NY06eHGiMwVqeFHbu+qf/LnpB59oBhYRw88PKcQ8IAeO3VU9+3xh5FFrUtcA3nNwibzPY D4DKsE8kxKStbNLPCqGBocI5ZNJ3qlsMMD/clSiIq/0yyUn8hq9em/DPJNqz+nbv2zA== ARC-Message-Signature: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1794049308; h=Received:DKIM-Signature:From:To:Cc:Subject:Date:Message-ID:X-Mailer: MIME-Version:Content-Type:Content-Transfer-Encoding; bh=bT86LsVxuXpb7GlgqpfyBm5PMhqrC6tJWeDTm4/XnQg=; b=u6XL0gCvm7mJXasvm5JDCeW+fmHgXdFQ6jccEQA2uktbp0dbHuc4PSZZoHKcUbMaTfg0 Q11UhZcTO9SPJt09br5jBUA9m92m+Chnvn/gbNLMzlOsdtI3JWu1XntpZamJ9QkFg6Ss1 hVs6oFMhrlnCO2bBgoqwQZmZUU/pUG5jpmjBBxUZ5nQL+UqYY3/EhWSyAW+7JlMNRVTmz M5K9Hp9D82wH53aLj6q4EY7ZU8kIUmXZ32YAidHznilFTam0AkB3GV0szywZk4e8VF7ns Yu6iseUg5sAMBeYJLLiXx5OaUmXEve59nP3GQjxFnlaw63Ez4UBX1dEQ/9a6sOOgNCA== 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=HxTL+JQl; 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 1A2FC606A333 for ; Sat, 7 Nov 2026 11:01:48 +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=HxTL+JQl Received: by smtp.kernel.org (Postfix) with ESMTPSA id 751A01F0089F; Sat, 7 Nov 2026 11:01:47 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1794049308; bh=bT86LsVxuXpb7GlgqpfyBm5PMhqrC6tJWeDTm4/XnQg=; h=From:To:Cc:Subject:Date; b=HxTL+JQllW1MTXUrHEmgAqsVnRBLplE8kBgrV5BQUhr4ptTQMvjcqeLMMRGznZBJV HClBJDC1PqFIyUOXWYXCdbBiJTd5iJrsYBwcOav3Aufp3WgvoV+ePj7eM8NpyWurZZ dVK908FMrjqx1FrZ22jWlOEZ+OYyEl/CAQjjc8Bn0gFYGxZjBdrK+JBnJ1fbwTRhDR 5HKfuVzJw8eotnlj4kYw35d+XX8hKSrqsa9qWBH5JarvMqxJy0DZcuuSGQb23W2dqX v7BGQNuyW8UwhzmSIoLNQExFHkrPOrsD4ZOJS7J6ejkjJZY+HE+pf0LymV7mwPrfk/ Nj6+hAUqI4xbw== 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 5.15-stable tree Date: Sat, 7 Nov 2026 06:01:46 -0500 Message-ID: <20261107060145-failed-5.15-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 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 . 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 a875c43dd95ee4f9c4e3e5ae1cb8362cc6d7817d # git commit -s git send-email --to '' --in-reply-to '20261107060145-failed-5.15-a875c43dd95e@kernel.org' --subject-prefix 'PATCH 5.15.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