From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.20]) (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 42BA3246BCB for ; Mon, 30 Jun 2025 09:33:05 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=198.175.65.20 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1751275986; cv=none; b=U7Uf767zG7k+UJkddhIeIdfCbDqDxzc+wrZf0aSBfFEvjy2oj+d5iE7QOJiVpOTrAw8ewAJfEyTWSh5+yq0b/QsfElf4yBu0azdsS54R3EMzWgP6b71Dauxwo42Pqzeh2whhXZRBO22PB9FrzEaMHMw0I6EydKlzzv7A+O+zCo8= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1751275986; c=relaxed/simple; bh=c3EE6wrQNXh5lkN5NgK6InlkspugXxkkAh0cxdXykUE=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=SGeadIYWqI8xughrYy4LnVrK3MpgRZiNWqD24xeyGIctDaeGay8dKQgzxPk7roCA9P6p+tO1BcH/wQfG65/tRIO7toofyZ/XYXOnZhzEz0dUBPQQjcCTnysPH2qKKOOlKUXsGvRJ8sbkGScBh7BiRDRQfm34AfHATr0OknLG1YQ= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=intel.com; spf=pass smtp.mailfrom=intel.com; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b=c/2wMMO4; arc=none smtp.client-ip=198.175.65.20 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=intel.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=intel.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="c/2wMMO4" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1751275986; x=1782811986; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=c3EE6wrQNXh5lkN5NgK6InlkspugXxkkAh0cxdXykUE=; b=c/2wMMO4i/y5HuxO1JTCe/2jVSzOTdDg+DW6E+zhsQJ5wUN76WZMjhwn ps+ThKb8RUupY+g36GII1jJ61eSvpTQ0HEb7rPgcRUHRmjfzcOFDKNdal pQxy3HgJsUqzAlXb0cvb14ceSKhrAdcYd3RLXOT17RoKfraRV/1EUQuZs 22fEmrvHGP84M9L64yyJUyH+o+r45BnG1LyhEEi1afGoCcgLWGoOEbNdj 6pVq7T7iRv6DkW+0mdbpUOzITvUIcRxr3R+ukuR+rfYE8k+vty5X56bw4 cEIKba5FI3aQAkcpOS7aSymZUxCx7FiJT8tNbDI1dv4zO1FpzQ7Rxow5V A==; X-CSE-ConnectionGUID: 30SumiyZTgmsnqtSZKdHSQ== X-CSE-MsgGUID: eF3IM5NgTGW8tGKU7qz6fw== X-IronPort-AV: E=McAfee;i="6800,10657,11479"; a="53218591" X-IronPort-AV: E=Sophos;i="6.16,277,1744095600"; d="scan'208";a="53218591" Received: from fmviesa007.fm.intel.com ([10.60.135.147]) by orvoesa112.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 30 Jun 2025 02:33:05 -0700 X-CSE-ConnectionGUID: Aw41gVAGTZW6CfaaWBvk6w== X-CSE-MsgGUID: hkZK3k/1RHGkBJFxbVYL7A== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.16,277,1744095600"; d="scan'208";a="153039558" Received: from sannilnx-dsk.jer.intel.com ([10.12.231.107]) by fmviesa007-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 30 Jun 2025 02:33:04 -0700 From: Alexander Usyskin To: Greg Kroah-Hartman Cc: Reuven Abliyev , Alexander Usyskin , linux-kernel@vger.kernel.org Subject: [char-misc-next v2 1/5] mei: set parent for char device Date: Mon, 30 Jun 2025 12:19:38 +0300 Message-ID: <20250630091942.2116676-2-alexander.usyskin@intel.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20250630091942.2116676-1-alexander.usyskin@intel.com> References: <20250630091942.2116676-1-alexander.usyskin@intel.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Connect char device to parent device to avoid parent device unload while char device is still held open by user-space. Signed-off-by: Alexander Usyskin --- drivers/misc/mei/main.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/misc/mei/main.c b/drivers/misc/mei/main.c index 1f5aaf16e300..95d4c1d8e4e6 100644 --- a/drivers/misc/mei/main.c +++ b/drivers/misc/mei/main.c @@ -1225,6 +1225,7 @@ int mei_register(struct mei_device *dev, struct device *parent) devno = MKDEV(MAJOR(mei_devt), dev->minor); cdev_init(&dev->cdev, &mei_fops); dev->cdev.owner = parent->driver->owner; + cdev_set_parent(&dev->cdev, &parent->kobj); /* Add the device */ ret = cdev_add(&dev->cdev, devno, 1); -- 2.43.0