linux-kernel - [char-misc-next v3 1/5] mei: set parent for char device

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20250709151344.104942-2-alexander.usyskin@intel.com>
Date: Wed,  9 Jul 2025 18:13:40 +0300
From: Alexander Usyskin <alexander.usyskin@...el.com>
To: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc: Reuven Abliyev <reuven.abliyev@...el.com>,
	Alexander Usyskin <alexander.usyskin@...el.com>,
	linux-kernel@...r.kernel.org
Subject: [char-misc-next v3 1/5] mei: set parent for char device

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 <alexander.usyskin@...el.com>
---
 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