Bluetooth: Don't restart scanning if paused

When restarting LE scanning, check if it's currently paused before
enabling passive scanning.

Signed-off-by: Abhishek Pandit-Subedi <abhishekpandit@chromium.org>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>

net/bluetooth/hci_request.c

@@ -819,6 +819,11 @@ static void hci_req_start_scan(struct hci_request *req, u8 type, u16 interval,
 {
 	struct hci_dev *hdev = req->hdev;
 
+	if (hdev->scanning_paused) {
+		bt_dev_dbg(hdev, "Scanning is paused for suspend");
+		return;
+	}
+
 	/* Use ext scanning if set ext scan param and ext scan enable is
 	 * supported
 	 */
@@ -2657,6 +2662,11 @@ static int le_scan_restart(struct hci_request *req, unsigned long opt)
 	if (!hci_dev_test_flag(hdev, HCI_LE_SCAN))
 		return 0;
 
+	if (hdev->scanning_paused) {
+		bt_dev_dbg(hdev, "Scanning is paused for suspend");
+		return 0;
+	}
+
 	hci_req_add_le_scan_disable(req);
 
 	if (use_ext_scan(hdev)) {