Bluetooth: Start background scanning only when controller is ready

When the controller is not active or in init/setup phase, do not
try to start or stop background scanning.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>

diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c
index adea7de9563389252dfa395d87a21b124393184f..2312e77582b0f807039afe379bd070188a9dac14 100644 (file)
--- a/net/bluetooth/hci_core.c
+++ b/net/bluetooth/hci_core.c
@@ -5317,7 +5317,10 @@ void hci_update_background_scan(struct hci_dev *hdev)
        struct hci_conn *conn;
        int err;
 
-       if (test_bit(HCI_UNREGISTER, &hdev->dev_flags))
+       if (!test_bit(HCI_UP, &hdev->flags) ||
+           test_bit(HCI_INIT, &hdev->flags) ||
+           test_bit(HCI_SETUP, &hdev->dev_flags) ||
+           test_bit(HCI_UNREGISTER, &hdev->dev_flags))
                return;
 
        hci_req_init(&req, hdev);