From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 03681C88E75 for ; Tue, 15 Sep 2026 11:58:16 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: MIME-Version:Message-ID:Date:Subject:Cc:To:From:Reply-To:Content-Type: Content-ID:Content-Description:Resent-Date:Resent-From:Resent-Sender: Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References:List-Owner; bh=BrGTdKyYWPDzcFJDUsLHUxteyx4n5jj5bbwXZChmZq4=; b=KfBT1CkF33gJDwslh4o3RvRb25 sHRweUL2P7XORY0WT2gpJA9Z3ax/i1F7yawETVy1aSy35P18ynNKWoruhlBBR2yKNy2LsXFITHde7 djH0r9t3MRrVeE2PAMdW5ClDwIzABZz5UbZzXOj+YSjx3TzaEBV7kWUvkkfgD6G11DRsUaivQlpef nyGDRi7nRFnw8XKBxvKx5MgT6zzwCtr3wocrS8SsU3u1EYh6RgpwkcHDWXbl50AeohLZGKlMesyBS QKBB/MgmpxM/r8XxdC37bv0ZWuPPGjK3X5MX6v9k46G57E3et8x0KqVouaCRSUrVFItYdidFVtUY+ vDsR7Row==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.99.1 #2 (Red Hat Linux)) id 1x6Rnj-00000006LHG-14T0; Tue, 15 Sep 2026 11:58:15 +0000 Received: from mail-pj2-x11.google.com ([2607:f8b0:4864:39::11]) by bombadil.infradead.org with esmtps (Exim 4.99.1 #2 (Red Hat Linux)) id 1x6Rng-00000006LF8-37AM for linux-mediatek@lists.infradead.org; Tue, 15 Sep 2026 11:58:13 +0000 Received: by mail-pj2-x11.google.com with SMTP id 98e67ed59e1d1-396ccb1a990so2740229a91.3 for ; Tue, 15 Sep 2026 04:58:12 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20251104; t=1789473492; x=1790078292; darn=lists.infradead.org; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:from:to:cc:subject:date:message-id:reply-to:content-type; bh=BrGTdKyYWPDzcFJDUsLHUxteyx4n5jj5bbwXZChmZq4=; b=LjuV5cDdC4mMuWZDfAM+3MEykNztWrJLWHBmDUn6v2o9a74FUX4N9KsppZhJtEVkA/ ZfSOdSkFXh8KvqJhSwUxTaJPPRyhWRYua5JILRQ1sYKq/k+LcIqvavAf0ZBcn2+GoApt QFZrod6K3WsPt4ZbreqKS+G1I7GEW+Y+PDyXmkaL5H7qCD/URVO+71ZBVW7giqw+0SGt /ziv5xRa/z09aaXKX1gd+68tdpbelTMeb4+WswUxTYNzZvdSbF3EFDxVxbYyEMdUZCzw gz44zciawEGW2NMC1zbVluZvgL9GxrPY6VFZflf1RO9cw1D+3L/f3wWM9nNViULQtBKr RJSg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20260707; t=1789473492; x=1790078292; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:x-gm-gg:x-gm-message-state:from:to:cc:subject:date :message-id:reply-to:content-type; bh=BrGTdKyYWPDzcFJDUsLHUxteyx4n5jj5bbwXZChmZq4=; b=F8dOna5ojK/EwvjPW3+XMSI9O7uqYOrRY5lwvNxYHS4WClPUc+M9JVyJqhgmjcgKHc M8+KWrEoRlH0XBx69SIlYqHbnxxxYDtpkydCISM5WkaFSK61QZGaHyym5RJwjpO5vfIP gflf8SFhjtSjtG/Z6Eth77pV6NeZc9c+7hR9gDbPLOthdAnbobzRuStw1P9kHq8Z1Lfr 7r65oaMtpZRQ5dFOpWTEH/jSO1CY03yzCsomV9dTCmstC25ClQT4vk7E9Sc220gtnAP7 ynot9Fg1XNY0/S+qgGusmUJ95lwtmXXxSDdADC7SnY5aFTL0jBoPWQd/r6G/XSlNWd6d uZ2w== X-Forwarded-Encrypted: i=1; AKwUvByFbFBO9mipblpoEi0o8TGMAxg2iEKoZ+3mDN1GjRURAMOLtwWmpo71RDmvqfxH9VVVBRV3U76+3vfIMahg1w==@lists.infradead.org X-Gm-Message-State: AFuF++lwoHF6yoqiuqOewSmyelM2o8rpXUUPhJ9ooTJ2R5BlZAzBOeTJ xsFMk2J4ZPtaZA5Ad7bfMU1Zkm7vcuPxhVModdb6uY1cUTtWpZutaDut X-Gm-Gg: AYBFou1Yd3CLTwAO2Ja0PllLG9OVjTdcfuMw2RDwBVUkJopJJ9Ub/bsRoSoNEsu2fD+ R0PZ59gsGcBWtoNh6+G1BVv5cbUpPdbM+Cr36XHv6gzkf15kVEo1yfHizEaKxKyHGNGJDvx8AYU 03kCQuKX2CNJ/jiCBPm+EdiyiAq/NvUx7PW0GzDcd+cinKleVPQTZqiNXDTmd+xvJY7+J1E9r8G fwXYROGdnW7nD6oUWE3qbsY6rN7rpeqHsgIsQashQSPXk6kw8J9UppT2We9lG1adXCMOCz1eZcb 6myFSCjlUBfk13mYiKAH4euPtVG27pzhMx1nBIrW/XxgURaZZsOddbHSFnvlI4sYuUWm/UAc4u0 CHaB+vgYTJbfzy1NhVuwuFUSlvid3iR7uj6tslnpmMirBXv1Nub7wg9g5QbUk84iqZ92pL/WQvK uViXY2oJ2OEyEFJGcnq4LRpRvFLdDiNlEfiYVd0+llRNwqKiwEOmulzQ== X-Received: by 2002:a17:90a:d648:b0:39d:cbb1:c96f with SMTP id 98e67ed59e1d1-39dec09a779mr13558544a91.18.1789473491565; Tue, 15 Sep 2026 04:58:11 -0700 (PDT) Received: from lgs.. ([2001:250:5800:1002::de93]) by smtp.gmail.com with ESMTPSA id 98e67ed59e1d1-39dfdacba6bsm4953697a91.14.2026.09.15.04.58.03 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 15 Sep 2026 04:58:10 -0700 (PDT) From: Guangshuo Li To: Tiffany Lin , Andrew-CT Chen , Yunfei Dong , Mauro Carvalho Chehab , Matthias Brugger , AngeloGioacchino Del Regno , Nicolas Dufresne , Fei Shao , Kees Cook , Guangshuo Li , Chen-Yu Tsai , Hans Verkuil , Steve Cho , linux-media@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org Cc: stable@vger.kernel.org Subject: [PATCH] media: mediatek: vcodec: destroy core workqueue on remove Date: Tue, 15 Sep 2026 19:57:53 +0800 Message-ID: <20260915115753.2411047-1-lgs201920130244@gmail.com> X-Mailer: git-send-email 2.43.0 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.9.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260915_045812_793049_36BF7DEB X-CRM114-Status: GOOD ( 10.93 ) X-BeenThere: linux-mediatek@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "Linux-mediatek" Errors-To: linux-mediatek-bounces+linux-mediatek=archiver.kernel.org@lists.infradead.org The decoder probe allocates core_workqueue for latency-based decoder architectures. The probe failure paths destroy the workqueue, but the normal remove path only destroys decode_workqueue. As a result, removing a latency-based decoder leaves core_workqueue allocated after the device lifetime has ended. Destroy core_workqueue during remove for latency-based decoder architectures, matching the cleanup performed by the probe failure paths. This issue was found by manual code inspection. Fixes: 365e4ba01df4 ("media: mtk-vcodec: Add work queue for core hardware decode") Cc: stable@vger.kernel.org Signed-off-by: Guangshuo Li --- .../media/platform/mediatek/vcodec/decoder/mtk_vcodec_dec_drv.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/media/platform/mediatek/vcodec/decoder/mtk_vcodec_dec_drv.c b/drivers/media/platform/mediatek/vcodec/decoder/mtk_vcodec_dec_drv.c index e936ed8dffba..426d060d937c 100644 --- a/drivers/media/platform/mediatek/vcodec/decoder/mtk_vcodec_dec_drv.c +++ b/drivers/media/platform/mediatek/vcodec/decoder/mtk_vcodec_dec_drv.c @@ -570,6 +570,8 @@ static void mtk_vcodec_dec_remove(struct platform_device *pdev) struct mtk_vcodec_dec_dev *dev = platform_get_drvdata(pdev); destroy_workqueue(dev->decode_workqueue); + if (IS_VDEC_LAT_ARCH(dev->vdec_pdata->hw_arch)) + destroy_workqueue(dev->core_workqueue); if (media_devnode_is_registered(dev->mdev_dec.devnode)) { media_device_unregister(&dev->mdev_dec); -- 2.43.0