From 8a433f2d7af63438dc2ea9fa8d787177caf71e0e Mon Sep 17 00:00:00 2001
From: Pali Rohár <pali.rohar@gmail.com>
Date: Thu, 12 May 2016 00:18:02 +0200
Subject: usb-device: Do not reattach kernel driver if USB interface is not
 used

---
 src/usb-device.c | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'src/usb-device.c')

diff --git a/src/usb-device.c b/src/usb-device.c
index 670eb9e..a7fdf6b 100644
--- a/src/usb-device.c
+++ b/src/usb-device.c
@@ -78,6 +78,9 @@ static void usb_flash_device_info_print(const struct usb_flash_device * dev) {
 
 static void usb_reattach_kernel_driver(libusb_device_handle * udev, int interface) {
 
+	if ( interface < 0 )
+		return;
+
 	PRINTF_LINE("Reattach kernel driver to USB interface...");
 	PRINTF_END();
 	libusb_release_interface(udev, interface);
-- 
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