File libvirt-qemu-Fix-crash-in-migration-of-graphics-less-guests.patch of Package libvirt

From 7e3a910c45b42fa1e429ae9c67b44a013419202a Mon Sep 17 00:00:00 2001
Message-Id: <7e3a910c45b42fa1e429ae9c67b44a013419202a.1373271641.git.jdenemar@redhat.com>
From: Viktor Mihajlovski <mihajlov@linux.vnet.ibm.com>
Date: Thu, 16 May 2013 14:41:29 +0200
Subject: [PATCH] qemu: Fix crash in migration of graphics-less guests.

https://bugzilla.redhat.com/show_bug.cgi?id=920441

Commit 7f15ebc7a2b599ab10dbc15bca6f823591213e67 introduced a bug
happening when guests without a <graphics> element are migrated.
The initialization of listenAddress happens unconditionally
from the cookie even if the cookie->graphics pointer was NULL.
Moved the initialization to where it is safe.

Signed-off-by: Viktor Mihajlovski <mihajlov@linux.vnet.ibm.com>
(cherry picked from commit 9684bb11fd3832582308d0bcdb649041fd6584e2)
---
 src/qemu/qemu_migration.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/qemu/qemu_migration.c b/src/qemu/qemu_migration.c
index 2c50eaf..4a00727 100644
--- a/src/qemu/qemu_migration.c
+++ b/src/qemu/qemu_migration.c
@@ -1062,7 +1062,7 @@ qemuDomainMigrateGraphicsRelocate(struct qemud_driver *driver,
 {
     qemuDomainObjPrivatePtr priv = vm->privateData;
     int ret;
-    char *listenAddress = cookie->graphics->listen;
+    char *listenAddress;
 
     if (!cookie)
         return 0;
@@ -1076,6 +1076,7 @@ qemuDomainMigrateGraphicsRelocate(struct qemud_driver *driver,
     if (cookie->graphics->type != VIR_DOMAIN_GRAPHICS_TYPE_SPICE)
         return 0;
 
+    listenAddress = cookie->graphics->listen;
     if (!listenAddress ||
         STREQ(listenAddress, "0.0.0.0") ||
         STREQ(listenAddress, "::"))
-- 
1.8.2.1