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Diffstat (limited to 'net')
-rw-r--r--net/bluetooth/hci_core.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c
index 815269b07f20..cb9cb48c6e88 100644
--- a/net/bluetooth/hci_core.c
+++ b/net/bluetooth/hci_core.c
@@ -509,6 +509,11 @@ int hci_dev_open(__u16 dev)
hci_req_lock(hdev);
+ if (test_bit(HCI_UNREGISTER, &hdev->flags)) {
+ ret = -ENODEV;
+ goto done;
+ }
+
if (hdev->rfkill && rfkill_blocked(hdev->rfkill)) {
ret = -ERFKILL;
goto done;
@@ -1317,6 +1322,8 @@ int hci_unregister_dev(struct hci_dev *hdev)
BT_DBG("%p name %s bus %d", hdev, hdev->name, hdev->bus);
+ set_bit(HCI_UNREGISTER, &hdev->flags);
+
write_lock_bh(&hci_dev_list_lock);
list_del(&hdev->list);
write_unlock_bh(&hci_dev_list_lock);