File bug-986056_pacemaker-attrd-segfault-on-exit.patch of Package pacemaker.3577

commit 3c62fb1d0deab7a15603c90abeff163aa093802f
Author: Gao,Yan <ygao@suse.com>
Date:   Fri Jun 17 11:20:13 2016 +0200

    Fix: attrd,ipc: Prevent possible segfault on exit

Index: pacemaker/attrd/main.c
===================================================================
--- pacemaker.orig/attrd/main.c
+++ pacemaker/attrd/main.c
@@ -373,8 +373,8 @@ main(int argc, char **argv)
     crm_notice("Cleaning up before exit");
 
     election_fini(writer);
-    crm_client_disconnect_all(ipcs);
     if (ipcs) {
+        crm_client_disconnect_all(ipcs);
         qb_ipcs_destroy(ipcs);
         g_hash_table_destroy(attributes);
     }
Index: pacemaker/lib/common/ipc.c
===================================================================
--- pacemaker.orig/lib/common/ipc.c
+++ pacemaker/lib/common/ipc.c
@@ -270,7 +270,13 @@ crm_client_cleanup(void)
 void
 crm_client_disconnect_all(qb_ipcs_service_t *service)
 {
-    qb_ipcs_connection_t *c = qb_ipcs_connection_first_get(service);
+    qb_ipcs_connection_t *c = NULL;
+
+    if (service == NULL) {
+        return;
+    }
+
+    c = qb_ipcs_connection_first_get(service);
 
     while (c != NULL) {
         qb_ipcs_connection_t *last = c;