[PATCH] xenconfig: fix xml conversion convert with no graphics

[Joao Martins <joao.m.martins@xxxxxxxxxx>]

If no graphics element is in XML xenFormatXLSpice will access
graphics without checking it has one in the first place, leading to a
segmentation fault.

Signed-off-by: Joao Martins <joao.m.martins@xxxxxxxxxx>
---
 src/xenconfig/xen_xl.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/xenconfig/xen_xl.c b/src/xenconfig/xen_xl.c
index 2c9174e..74f68b3 100644
--- a/src/xenconfig/xen_xl.c
+++ b/src/xenconfig/xen_xl.c
@@ -1168,7 +1168,7 @@ xenFormatXLSpice(virConfPtr conf, virDomainDefPtr def)
     virDomainGraphicsListenDefPtr glisten;
     virDomainGraphicsDefPtr graphics;
 
-    if (def->os.type == VIR_DOMAIN_OSTYPE_HVM) {
+    if (def->os.type == VIR_DOMAIN_OSTYPE_HVM && def->graphics) {
         graphics = def->graphics[0];
 
         if (graphics->type == VIR_DOMAIN_GRAPHICS_TYPE_SPICE) {
-- 
2.1.4

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