--- x/net/bluetooth/hci_sync.c
+++ y/net/bluetooth/hci_sync.c
@@ -306,11 +306,9 @@ static void hci_cmd_sync_work(struct wor
 		if (entry->func) {
 			int err;
 
-			hci_req_sync_lock(hdev);
 			err = entry->func(hdev, entry->data);
 			if (entry->destroy)
 				entry->destroy(hdev, entry->data, err);
-			hci_req_sync_unlock(hdev);
 		}
 
 		kfree(entry);