From f65168f82d6b7795fdd5f2efe3ad10830a87dcbb Mon Sep 17 00:00:00 2001

From: Lukas Nykryn <lnykryn@redhat.com>

Date: Tue, 29 Apr 2014 15:05:05 +0200

Subject: [PATCH] lsusb-t: don't segfault when usbbuslist is empty

---

 lsusb-t.c | 2 +-

 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lsusb-t.c b/lsusb-t.c

index 0f2c5bf..a849d4c 100644

--- a/lsusb-t.c

+++ b/lsusb-t.c

@@ -609,7 +609,7 @@ static void sort_busses(void)

 		p = usbbuslist;

 		pp = &usbbuslist;

 		swapped = 0;

-		while (p->next) {

+		while (p && p->next) {

 			if (p->busnum < p->next->busnum) {

 				t = p->next;

 				p->next = t->next;

-- 

1.8.3.1