commit 856965b36246b26002af409262846317477ea631
Author: Cole Robinson <crobinso@redhat.com>
Date:   Wed Aug 10 10:32:03 2016 -0400

    qemu: fix qemu.conf security_driver
    
    Since a9331394 (first release v2.1.0), specifying a manual
    security_driver setting in qemu.conf causes the daemon to fail to
    start, erroring with 'Duplicate security driver X'.
    
    The duplicate checking was incorrectly comparing every entry
    against itself, guaranteeing a false positive.
    
    https://bugzilla.redhat.com/show_bug.cgi?id=1365607

Index: libvirt-2.1.0/src/qemu/qemu_conf.c
===================================================================
--- libvirt-2.1.0.orig/src/qemu/qemu_conf.c
+++ libvirt-2.1.0/src/qemu/qemu_conf.c
@@ -431,7 +431,7 @@ int virQEMUDriverConfigLoadFile(virQEMUD
         goto cleanup;
 
     for (i = 0; cfg->securityDriverNames && cfg->securityDriverNames[i] != NULL; i++) {
-        for (j = i; cfg->securityDriverNames[j] != NULL; j++) {
+        for (j = i + 1; cfg->securityDriverNames[j] != NULL; j++) {
             if (STREQ(cfg->securityDriverNames[i],
                       cfg->securityDriverNames[j])) {
                 virReportError(VIR_ERR_CONF_SYNTAX,