linux-kernel - syztest

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Message-ID: <20250730055126.114185-1-contact@arnaud-lcm.com>
Date: Wed, 30 Jul 2025 06:51:26 +0100
From: Arnaud Lecomte <contact@...aud-lcm.com>
To: syzbot+fa3a12519f0d3fd4ec16@...kaller.appspotmail.com
Cc: linux-block@...r.kernel.org,
	linux-fsdevel@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	syzkaller-bugs@...glegroups.com
Subject: syztest

#syz test

--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@@ -5978,10 +5978,6 @@ struct mddev *md_alloc(dev_t dev, char *name)
 
 	disk->events |= DISK_EVENT_MEDIA_CHANGE;
 	mddev->gendisk = disk;
-	error = add_disk(disk);
-	if (error)
-		goto out_put_disk;
-
 	kobject_init(&mddev->kobj, &md_ktype);
 	error = kobject_add(&mddev->kobj, &disk_to_dev(disk)->kobj, "%s", "md");
 	if (error) {
@@ -5999,6 +5995,9 @@ struct mddev *md_alloc(dev_t dev, char *name)
 	kobject_uevent(&mddev->kobj, KOBJ_ADD);
 	mddev->sysfs_state = sysfs_get_dirent_safe(mddev->kobj.sd, "array_state");
 	mddev->sysfs_level = sysfs_get_dirent_safe(mddev->kobj.sd, "level");
+	error = add_disk(disk);
+	if (error)
+		goto out_put_disk;
 	mutex_unlock(&disks_mutex);
 	return mddev;
 
-- 
2.43.0