lsusb-t: make sure that interfaces are added to lists only once (#914929)

Conflicts:
	usbutils.spec

usbutils-006-lsub-t_loop.patch

@@ -0,0 +1,34 @@
+diff --git a/lsusb-t.c b/lsusb-t.c
+index 074dafb..3e29072 100644
+--- a/lsusb-t.c
++++ b/lsusb-t.c
+@@ -210,8 +210,13 @@ static void read_sysfs_file_string(const char *d_name, const char *file, char *b
+ 
+ static void append_dev_interface(struct usbinterface *i, struct usbinterface *new)
+ {
+-	while (i->next)
++	while (i->next) {
++		if (i == new)
++			return;
+ 		i = i->next;
++	}
++		if (i == new)
++			return;
+ 	i->next = new;
+ }
+ 
+@@ -230,8 +235,13 @@ static void append_businterface(unsigned int busnum, struct usbinterface *new)
+ 		if (b->busnum == busnum) {
+ 			i = b->first_interface;
+ 			if (i) {
+-				while (i->next)
++				while (i->next) {
++					if (i == new)
++						return;
+ 					i = i->next;
++				}
++				if (i == new)
++					return;
+ 				i->next = new;
+ 			} else
+ 				b->first_interface = new;

usbutils.spec

@@ -1,6 +1,6 @@
 Name: usbutils
 Version: 004
-Release: 4%{?dist}
+Release: 5%{?dist}
 Source:	http://www.kernel.org/pub/linux/utils/usb/usbutils/%{name}-%{version}.tar.gz
 URL: http://www.linux-usb.org/
 License: GPLv2+
@@ -15,6 +15,7 @@ Patch0: usbutils-003-hwdata.patch
 #Path to usb.ids should be with /hwdata/
 Patch1: usbutils-make-hwdata.patch
 Patch2: usbutils-005-readlink.patch
+Patch3: usbutils-006-lsub-t_loop.patch
 
 %description
 This package contains utilities for inspecting devices connected to a
@@ -25,6 +26,7 @@ USB bus.
 %patch0 -p1
 %patch1 -p1
 %patch2 -p1
+%patch3 -p1
 autoreconf
 
 %build
@@ -46,6 +48,9 @@ make install DESTDIR=$RPM_BUILD_ROOT INSTALL="install -p"
 rm -rf $RPM_BUILD_ROOT
 
 %changelog
+* Tue Feb 26 2013 Lukáš Nykrýn <lnykryn@redhat.com> - 004-5
+- lsusb-t: make sure that interfaces are added to lists only once (#814087)
+
 * Thu Apr 19 2012 Lukas Nykryn <lnykryn@redhat.com> 004-4
 - Ignore missing driver symlink (#808934)