From nobody Tue Oct 7 15:01:45 2025 Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.15]) (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 A23D12E8DEB for ; Wed, 9 Jul 2025 15:26:52 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=192.198.163.15 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1752074814; cv=none; b=MPyy3sVWQO5u2O4A+5rA4ksqnax1VKA4FTG2CUsjlzf/aU/ByunGqtWtJBHTAi02AiUeBNOwRM6hiz8EAvtT/u8YzkIr19+NfdNpiIljwSuuuEAMVM0EeMvvd/jiu6kRind5JrkOUXCvkFFHJ3LUAWb4A9lpDZPYAHmMrhIfCIY= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1752074814; c=relaxed/simple; bh=c3EE6wrQNXh5lkN5NgK6InlkspugXxkkAh0cxdXykUE=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=DpYE8IwlxicwAHGUIUIs+M1fsdizKbQUNQJvwRbyxoey0EWPGS/Y021JMhL+WNah69G381W7kBPhWqphgRKoQZLd2KQebfvSB/xo50jAePk2frqtDwLfxt7hbDbZvknKp5fzBrUcwoXW6iEbOAjM+b/NkJcJxfJhYv9Ijylkhxg= 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=VSRslTd3; arc=none smtp.client-ip=192.198.163.15 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="VSRslTd3" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1752074813; x=1783610813; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=c3EE6wrQNXh5lkN5NgK6InlkspugXxkkAh0cxdXykUE=; b=VSRslTd3jvq57QEBvKW8a7J4PgjdjrAKJpi20Yrv86zHNS/bRh3gDcnz /7/7sb0fxT7a/yxrns8+4zqHXzPnxFFFk7vLC9xsLMNhmvuodfrbSxW3j cIWlqpJlDMACprqkx1xMSebpcdHvNV60oZ/x7ZquiB3FIgxjtULvO7N3B JPLkMgFkmeZRViXMADbHTIjM1aYItDD+sFwm37IbWE+gkcFFHQda/V6A/ u5gaGwJ/GPqi7oFRd1sd+N4F4tRjZ0fbcHtPcN24+UgK3QALYiHW69tfo cTbFpBFF+rhWVIP6aQ7FKVBS/1fvaCUANzR6HjQbcUV4F1pPpD+XpEouv g==; X-CSE-ConnectionGUID: mOP40g6SSoawKoIPoFsQNA== X-CSE-MsgGUID: Mn+th4tyQ+KS0r0Zfinsqw== X-IronPort-AV: E=McAfee;i="6800,10657,11489"; a="54487381" X-IronPort-AV: E=Sophos;i="6.16,298,1744095600"; d="scan'208";a="54487381" Received: from orviesa009.jf.intel.com ([10.64.159.149]) by fmvoesa109.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 09 Jul 2025 08:26:52 -0700 X-CSE-ConnectionGUID: A3C4383ORdmnj/IAkcNVpQ== X-CSE-MsgGUID: gK4EmQi6TaKogSUXN5PnDQ== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.16,298,1744095600"; d="scan'208";a="155557805" Received: from sannilnx-dsk.jer.intel.com ([10.12.231.107]) by orviesa009-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 09 Jul 2025 08:26:50 -0700 From: Alexander Usyskin To: Greg Kroah-Hartman Cc: Reuven Abliyev , Alexander Usyskin , linux-kernel@vger.kernel.org Subject: [char-misc-next v3 1/5] mei: set parent for char device Date: Wed, 9 Jul 2025 18:13:40 +0300 Message-ID: <20250709151344.104942-2-alexander.usyskin@intel.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20250709151344.104942-1-alexander.usyskin@intel.com> References: <20250709151344.104942-1-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: quoted-printable Content-Type: text/plain; charset="utf-8" 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 devic= e *parent) devno =3D MKDEV(MAJOR(mei_devt), dev->minor); cdev_init(&dev->cdev, &mei_fops); dev->cdev.owner =3D parent->driver->owner; + cdev_set_parent(&dev->cdev, &parent->kobj); =20 /* Add the device */ ret =3D cdev_add(&dev->cdev, devno, 1); --=20 2.43.0