--- zzzz-none-000/linux-3.10.107/drivers/net/wireless/libertas_tf/if_usb.c	2017-06-27 09:49:32.000000000 +0000
+++ scorpion-7490-727/linux-3.10.107/drivers/net/wireless/libertas_tf/if_usb.c	2021-02-04 17:41:59.000000000 +0000
@@ -365,7 +365,6 @@
 
 	return ret;
 }
-EXPORT_SYMBOL_GPL(if_usb_reset_device);
 
 /**
  *  usb_tx_block - transfer data to the device
@@ -822,15 +821,15 @@
 
 	lbtf_deb_enter(LBTF_DEB_USB);
 
-	kparam_block_sysfs_write(fw_name);
+	kernel_param_lock(THIS_MODULE);
 	ret = request_firmware(&cardp->fw, lbtf_fw_name, &cardp->udev->dev);
 	if (ret < 0) {
 		pr_err("request_firmware() failed with %#x\n", ret);
 		pr_err("firmware %s not found\n", lbtf_fw_name);
-		kparam_unblock_sysfs_write(fw_name);
+		kernel_param_unlock(THIS_MODULE);
 		goto done;
 	}
-	kparam_unblock_sysfs_write(fw_name);
+	kernel_param_unlock(THIS_MODULE);
 
 	if (check_fwfile_format(cardp->fw->data, cardp->fw->size))
 		goto release_fw;
@@ -907,7 +906,6 @@
 	lbtf_deb_leave_args(LBTF_DEB_USB, "ret %d", ret);
 	return ret;
 }
-EXPORT_SYMBOL_GPL(if_usb_prog_firmware);
 
 
 #define if_usb_suspend NULL