[libvirt] [PATCH] xen: Don't crash when we fail to init caps
by dereferencing a NULL pointer in the call to
virNodeSuspendGetTargetMask.
Only warn but Don't set an error to not overwrite an error code set by
xenHypervisorMakeCapabilities.
---
src/xen/xen_hypervisor.c | 4 ++++
1 files changed, 4 insertions(+), 0 deletions(-)
diff --git a/src/xen/xen_hypervisor.c b/src/xen/xen_hypervisor.c
index 2bb3466..855576c 100644
--- a/src/xen/xen_hypervisor.c
+++ b/src/xen/xen_hypervisor.c
@@ -2764,6 +2764,10 @@ xenHypervisorMakeCapabilities(virConnectPtr conn)
utsname.machine,
cpuinfo,
capabilities);
+ if (caps == NULL) {
+ VIR_WARN("Failed to get host capabilities");
+ return NULL;
+ }
if (virNodeSuspendGetTargetMask(&caps->host.powerMgmt) < 0)
VIR_WARN("Failed to get host power management capabilities");
--
1.7.8.3