[libvirt] [PATCH] cpu_ppc64: Error out when model tag missing in virsh cpu-compare xml

[Nitesh Konkar]

libvirtd throws unhandled signal 11 on ppc while running
virsh cpu-compare with missing model tag in the xml. This
patch errors out in such situation.

Signed-off-by: Nitesh Konkar <nitkon12 at linux.vnet.ibm.com>
---
 src/cpu/cpu_ppc64.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/src/cpu/cpu_ppc64.c b/src/cpu/cpu_ppc64.c
index b58e80a..c11ac9f 100644
--- a/src/cpu/cpu_ppc64.c
+++ b/src/cpu/cpu_ppc64.c
@@ -247,6 +247,12 @@ ppc64ModelFromCPU(const virCPUDef *cpu,
 {
     struct ppc64_model *model;
 
+    if (!cpu->model) {
+        virReportError(VIR_ERR_INVALID_ARG, "%s",
+                       _("no guest CPU model specified"));
+        return NULL;
+    }
+
     if (!(model = ppc64ModelFind(map, cpu->model))) {
         virReportError(VIR_ERR_INTERNAL_ERROR,
                        _("Unknown CPU model %s"), cpu->model);
-- 
2.9.5