From 18fcbdac53afdc9de837dcb13fce2333d0d04eae Mon Sep 17 00:00:00 2001
From: Richard Hughes <richard@hughsie.com>
Date: Wed, 29 Nov 2017 21:10:22 +0000
Subject: [PATCH] trivial: Do not allow calling klass->close multiple times on
 the same device

---
 src/fu-usb-device.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/fu-usb-device.c b/src/fu-usb-device.c
index 5fe03321d..13160b0a5 100644
--- a/src/fu-usb-device.c
+++ b/src/fu-usb-device.c
@@ -239,6 +239,10 @@ fu_usb_device_close (FuUsbDevice *device, GError **error)
 	g_return_val_if_fail (FU_IS_USB_DEVICE (device), FALSE);
 	g_return_val_if_fail (error == NULL || *error == NULL, FALSE);
 
+	/* already open */
+	if (priv->usb_device_locker == NULL)
+		return TRUE;
+
 	/* subclassed */
 	if (klass->close != NULL) {
 		if (!klass->close (device, error))