From 6fda6699e55d29c0966f716ee0ed95851a7c4747 Mon Sep 17 00:00:00 2001
From: Laine Stump <laine@laine.org>
Date: Fri, 18 Sep 2015 13:24:47 -0400
Subject: [PATCH] interface: report correct interface count when not returning
 list

The spec for virConnectListAllInterfaces says that if the pointer that
is supposed to hold the list of interfaces is NULL, the function
should just return the count of interfaces that matched the filter,
but the code never increments the count if the list pointer is NULL.
---
 src/interface/interface_backend_netcf.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/interface/interface_backend_netcf.c b/src/interface/interface_backend_netcf.c
index 9f745411e8..a01fbd6fe8 100644
--- a/src/interface/interface_backend_netcf.c
+++ b/src/interface/interface_backend_netcf.c
@@ -632,8 +632,9 @@ netcfConnectListAllInterfaces(virConnectPtr conn,
             if (!(iface_obj = virGetInterface(conn, ncf_if_name(iface),
                                               ncf_if_mac_string(iface))))
                 goto cleanup;
-            tmp_iface_objs[niface_objs++] = iface_obj;
+            tmp_iface_objs[niface_objs] = iface_obj;
         }
+        niface_objs++;
 
         ncf_if_free(iface);
         iface = NULL;