[PATCH 2/2] Bluetooth: virtio_bt: unregister hdev before freeing on open failure

[Yi Cong <cong.yi@linux.dev>]

From: Yi Cong <yicong@kylinos.cn>

When virtbt_open_vdev() fails after hci_register_dev() has succeeded,
the 'open_failed' path frees the hdev without unregistering it first,
leaving a dangling entry in the global HCI device list.

Fixes: afd2daa26c7a ("Bluetooth: Add support for virtio transport driver")
Cc: stable@vger.kernel.org
Signed-off-by: Yi Cong <yicong@kylinos.cn>
---
 drivers/bluetooth/virtio_bt.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/bluetooth/virtio_bt.c b/drivers/bluetooth/virtio_bt.c
index b674fe0c2779e..7c9c3f0085dc0 100644
--- a/drivers/bluetooth/virtio_bt.c
+++ b/drivers/bluetooth/virtio_bt.c
@@ -401,6 +401,7 @@ static int virtbt_probe(struct virtio_device *vdev)
 	return 0;
 
 open_failed:
+	hci_unregister_dev(hdev);
 	hci_free_dev(hdev);
 failed:
 	vdev->config->del_vqs(vdev);
-- 
2.25.1