From 549cedc6a9f0505de3930f42846c2a569caa91b9 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Guido=20G=C3=BCnther?= <agx@sigxcpu.org>
Date: Fri, 20 Jan 2012 08:56:39 +0100
Subject: [PATCH] xen: Don't crash when we fail to init caps

by dereferencing a NULL pointer in the call to
virNodeSuspendGetTargetMask.
---
 src/xen/xen_hypervisor.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/xen/xen_hypervisor.c b/src/xen/xen_hypervisor.c
index 5e7196712f..b5b2328c22 100644
--- a/src/xen/xen_hypervisor.c
+++ b/src/xen/xen_hypervisor.c
@@ -2764,6 +2764,8 @@ xenHypervisorMakeCapabilities(virConnectPtr conn)
                                                  utsname.machine,
                                                  cpuinfo,
                                                  capabilities);
+    if (caps == NULL)
+        return NULL;
 
     if (virNodeSuspendGetTargetMask(&caps->host.powerMgmt) < 0)
         VIR_WARN("Failed to get host power management capabilities");