xm_internal.c: fix locking bug: s/Lock/Unlock/

* src/xm_internal.c (xenXMDomainDefineXML): Release lock, (don't
try to acquire it) upon failure, just before returning.

ChangeLog

+Thu Jan 22 20:17:35 +0100 2009 Jim Meyering <meyering@redhat.com>
+
+	xm_internal.c: fix locking bug: s/Lock/Unlock/
+	* src/xm_internal.c (xenXMDomainDefineXML): Release lock, (don't
+	try to acquire it) upon failure, just before returning.
+
 Thu Jan 22 10:35:03 PST 2009 John Levon <john.levon@sun.com>
 
 	* gnulib/tests/.cvsignore: add test-random_r 

src/xm_internal.c

@@ -2357,7 +2357,7 @@ virDomainPtr xenXMDomainDefineXML(virConnectPtr conn, const char *xml) {
 
     if (!(def = virDomainDefParseString(conn, priv->caps, xml,
                                         VIR_DOMAIN_XML_INACTIVE))) {
-        xenUnifiedLock(priv);
+        xenUnifiedUnlock(priv);
         return (NULL);
     }