From 46e4c3dc9b20532738097177d7e1e6c55e37ffa1 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Josef=20S=C3=B6ntgen?= <jws@sysret.de>
Date: Fri, 29 Jan 2016 16:28:41 +0100
Subject: [PATCH] usb_drv: release interfaces on Usb session close

Interfaces that have been claimed by a component always have to be
released when the session is closed in case the component
malfunctioned.

Fixes #1869.
---
 repos/dde_linux/src/lib/usb/raw/raw.cc | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/repos/dde_linux/src/lib/usb/raw/raw.cc b/repos/dde_linux/src/lib/usb/raw/raw.cc
index 419c5dee6..0e39b6a3b 100644
--- a/repos/dde_linux/src/lib/usb/raw/raw.cc
+++ b/repos/dde_linux/src/lib/usb/raw/raw.cc
@@ -576,6 +576,13 @@ class Usb::Session_component : public Session_rpc_object,
 
 		~Session_component()
 		{
+			/* release claimed interfaces */
+			if (_device) {
+				unsigned const num = _device->udev->actconfig->desc.bNumInterfaces;
+				for (unsigned i = 0; i < num; i++)
+					release_interface(i);
+			}
+
 			_worker.stop();
 		}