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-rw-r--r--include/net/bluetooth/hci.h1
-rw-r--r--net/bluetooth/hci_core.c7
2 files changed, 8 insertions, 0 deletions
diff --git a/include/net/bluetooth/hci.h b/include/net/bluetooth/hci.h
index 344b0f972828..8f928f75e85e 100644
--- a/include/net/bluetooth/hci.h
+++ b/include/net/bluetooth/hci.h
@@ -92,6 +92,7 @@ enum {
HCI_SERVICE_CACHE,
HCI_LINK_KEYS,
HCI_DEBUG_KEYS,
+ HCI_UNREGISTER,
HCI_LE_SCAN,
HCI_SSP_ENABLED,
diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c
index 59ec99eb739b..2054c1321c87 100644
--- a/net/bluetooth/hci_core.c
+++ b/net/bluetooth/hci_core.c
@@ -666,6 +666,11 @@ int hci_dev_open(__u16 dev)
hci_req_lock(hdev);
+ if (test_bit(HCI_UNREGISTER, &hdev->dev_flags)) {
+ ret = -ENODEV;
+ goto done;
+ }
+
if (hdev->rfkill && rfkill_blocked(hdev->rfkill)) {
ret = -ERFKILL;
goto done;
@@ -1850,6 +1855,8 @@ void hci_unregister_dev(struct hci_dev *hdev)
BT_DBG("%p name %s bus %d", hdev, hdev->name, hdev->bus);
+ set_bit(HCI_UNREGISTER, &hdev->dev_flags);
+
write_lock(&hci_dev_list_lock);
list_del(&hdev->list);
write_unlock(&hci_dev_list_lock);