The branch stable/14 has been updated by kib:

URL: 
https://cgit.FreeBSD.org/src/commit/?id=23a55498a8184add2396479a09c7ba0921d057a4

commit 23a55498a8184add2396479a09c7ba0921d057a4
Author:     Konstantin Belousov <[email protected]>
AuthorDate: 2023-10-02 22:25:52 +0000
Commit:     Konstantin Belousov <[email protected]>
CommitDate: 2023-10-16 07:16:01 +0000

    vkbd: correct ref count on cloned cdevs
    
    (cherry picked from commit 6e92fc930943a85f311e986a02e2b3dae9e37126)
---
 sys/dev/vkbd/vkbd.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/sys/dev/vkbd/vkbd.c b/sys/dev/vkbd/vkbd.c
index a8d4583f46c7..3dbf64063e33 100644
--- a/sys/dev/vkbd/vkbd.c
+++ b/sys/dev/vkbd/vkbd.c
@@ -191,6 +191,8 @@ vkbd_dev_clone(void *arg, struct ucred *cred, char *name, 
int namelen,
                *dev = make_dev_credf(MAKEDEV_REF, &vkbd_dev_cdevsw, unit,
                        cred, UID_ROOT, GID_WHEEL, 0600, DEVICE_NAME "%d",
                        unit);
+       else
+               dev_ref(*dev);
 }
 
 /* Open device */

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