[libvirt] [PATCH] qemu migration: avoid NULL-deref given an invalid input

[Jim Meyering]

The fix here is to add the missing "goto".
Nearly every other use of qemudReportError is followed
closely by a goto or a return statement.

>From 898033ec5bb0399f7cc6a22ffd9f351552ced85b Mon Sep 17 00:00:00 2001
From: Jim Meyering <meyering at redhat.com>
Date: Mon, 14 Dec 2009 17:02:56 +0100
Subject: [PATCH] qemu migration: avoid NULL-deref given an invalid input

* src/qemu/qemu_driver.c (doNonTunnelMigrate): Don't let a
NULL "uri_out" provoke a NULL-dereference in doNativeMigrate:
supply omitted goto-after-qemudReportError.
---
 src/qemu/qemu_driver.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)

diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c
index c782f0d..9ef6c35 100644
--- a/src/qemu/qemu_driver.c
+++ b/src/qemu/qemu_driver.c
@@ -7430,6 +7430,7 @@ static int doNonTunnelMigrate(virDomainPtr dom,
     if (uri_out == NULL) {
         qemudReportError(NULL, NULL, NULL, VIR_ERR_INTERNAL_ERROR, "%s",
                          _("domainMigratePrepare2 did not set uri"));
+        goto cleanup;
     }

     if (doNativeMigrate(dom, driver, vm, uri_out, flags, dname, resource) < 0)
--
1.6.6.rc2.275.g51e2d