defect 642

fix segfault when null clusterNode parameter passed to saClusterNodeGet

(Logical change 1.223)


git-svn-id: http://svn.fedorahosted.org/svn/corosync/trunk@703 fd59a12c-fef9-0310-b244-a6a79926bd2f

lib/clm.c

@@ -518,6 +518,9 @@ saClmClusterNodeGet (
 	struct res_clm_nodeget res_clm_nodeget;
 	SaAisErrorT error = SA_OK;
 
+	if (clusterNode == NULL) {
+		return (SA_AIS_ERR_INVALID_PARAM);
+	}
 	error = saHandleInstanceGet (&clmHandleDatabase, clmHandle,
 		(void *)&clmInstance);
 	if (error != SA_OK) {