From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-m49198.qiye.163.com (mail-m49198.qiye.163.com [45.254.49.198]) (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 4A25E12CDBE for ; Tue, 28 Jul 2026 12:34:30 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=45.254.49.198 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1785242073; cv=none; b=BJ5ReQOB5Qb4UtCWtUm7JDm7rhM+XE0yFB5DUH/NJZhYUECe1NKv37V9GzyWm8rVS2d+ekGxTsuULa1qHnS3iVoPJtCUYzjg4Mta16vsO5Us+5l7HboAd0TCWDN1sdDM6dpQNbEcZhe3cHehb4NnZ48mHSbelmcaRQJJ3HCy7nU= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1785242073; c=relaxed/simple; bh=9RxmLqH1X0IBMjxiV6klJsCzmBwXjmJMJCrSW+e9/JM=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=cmMV1ScCA8+jXGzYGinYw+Uj8DDjZzbpL0+pMcdPvPwPOGSCfSJ60C7sEZd62+ni/sXtgwoJTmQ6fUffrQbn1A5ZflQjQj2X4W2Q1itQM2FP9/TAXDs0Ut675FfZuLzqP1XHD0NlJOG7MkEvT8WyEWwLB8/ti/bjD8tX9OAgSsY= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=seu.edu.cn; spf=pass smtp.mailfrom=seu.edu.cn; dkim=pass (1024-bit key) header.d=seu.edu.cn header.i=@seu.edu.cn header.b=G/G032Yc; arc=none smtp.client-ip=45.254.49.198 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=seu.edu.cn Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=seu.edu.cn Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=seu.edu.cn header.i=@seu.edu.cn header.b="G/G032Yc" Received: from LAPTOP-99KJFSET (unknown [221.228.238.82]) by smtp.qiye.163.com (Hmail) with ESMTP id 47e10a909; Tue, 28 Jul 2026 20:34:26 +0800 (GMT+08:00) From: Hongyan Xu To: vkoul@kernel.org, kishon@kernel.org Cc: Hongyan Xu , linux-phy@lists.infradead.org, linux-kernel@vger.kernel.org, jianhao.xu@seu.edu.cn Subject: [PATCH] phy: broadcom: ns2-usbdrd: cancel delayed work Date: Tue, 28 Jul 2026 20:33:36 +0800 Message-ID: <20260728123423.781-2-getshell@seu.edu.cn> X-Mailer: git-send-email 2.50.1.windows.1 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-HM-Tid: 0a9fa8b81cce03a1kunm4c64fbaeeecee X-HM-MType: 10 X-HM-Spam-Status: e1kfGhgUHx5ZQUpXWQgPGg8OCBgUHx5ZQUlOS1dZFg8aDwILHllBWSg2Ly tZV1koWUFITzdXWRgWCB1ZQUpXWS1ZQUlXWQ8JGhUIEh9ZQVkaQxpLVkseTEpNSE9NSEpPGlYeHw 5VEwETFhoSFyQUDg9ZV1kYEgtZQVlJSUpVSUlDVUlIQ1VDSVlXWRYaDxIVHRRZQVlPS0hVSktJSE 5DQ1VKS0tVS1kG DKIM-Signature: a=rsa-sha256; b=G/G032YcM8zK70HDohDwj7TGtfsPZ+snjRlCP5IQRXlN9WJb9DvXseozpFnAkhkZxbxuSxU0MO/dMwTCfONQXYdtnvxOBXN+7KQ2u6SqBAUJlmtbgcwh26Hnin2zX8W/1HsR1bWb8y4NRYRzVNf0RfhpzttRTR2MgtiswzvHxU0=; s=default; c=relaxed/relaxed; d=seu.edu.cn; v=1; bh=2PPymfwvlSf6hPUOCIr3axymdBfQH+HIh++NrR2XsaI=; h=date:mime-version:subject:message-id:from; ns2_drd_phy_probe() initializes wq_extcon. Both GPIO IRQs and the probe tail can queue it. There is no remove hook, so the delayed work can run after driver-managed resources are being released. Add a managed cleanup action before requesting IRQs. Devres releases the IRQs first, then cancels the delayed work while extcon, GPIO and MMIO state is still valid. This issue was found by a static analysis tool. Signed-off-by: Hongyan Xu --- drivers/phy/broadcom/phy-bcm-ns2-usbdrd.c | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/drivers/phy/broadcom/phy-bcm-ns2-usbdrd.c b/drivers/phy/broadcom/phy-bcm-ns2-usbdrd.c index 36ad02c33..54929edb1 100644 --- a/drivers/phy/broadcom/phy-bcm-ns2-usbdrd.c +++ b/drivers/phy/broadcom/phy-bcm-ns2-usbdrd.c @@ -264,6 +264,13 @@ static irqreturn_t gpio_irq_handler(int irq, void *dev_id) return IRQ_HANDLED; } +static void ns2_drd_phy_cancel_work(void *data) +{ + struct ns2_phy_driver *driver = data; + + cancel_delayed_work_sync(&driver->wq_extcon); +} + static const struct phy_ops ops = { .init = ns2_drd_phy_init, .power_on = ns2_drd_phy_poweron, @@ -342,6 +349,10 @@ static int ns2_drd_phy_probe(struct platform_device *pdev) INIT_DELAYED_WORK(&driver->wq_extcon, extcon_work); + ret = devm_add_action_or_reset(dev, ns2_drd_phy_cancel_work, driver); + if (ret) + return ret; + driver->id_irq = gpiod_to_irq(driver->id_gpiod); if (driver->id_irq < 0) { dev_err(dev, "failed to get ID IRQ\n"); -- 2.50.1.windows.1