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>

1 files changed, 4 insertions, 1 deletions

diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c
index adea7de95633..2312e77582b0 100644
--- 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);