Deal with dbus_connection_send_with_reply() returning NULL pending call

It is possible for dbus_connection_send_with_reply() to report no
failure, but still return NULL pending call object - for example if
the connection is in disconnected state - and thus we need to check
for this separately.

mce-sensorfw.c

@@ -1987,6 +1987,9 @@ static gboolean xsensord_get_name_owner(void)
 	if( !dbus_connection_send_with_reply(systembus, req, &pc, -1) )
 		goto EXIT;
 
+	if( !pc )
+		goto EXIT;
+
 	if( !dbus_pending_call_set_notify(pc, xsensord_get_name_owner_cb, 0, 0) )
 		goto EXIT;
 

modules/battery-upower.c

@@ -822,6 +822,9 @@ static void xup_properties_get_all(const char *path)
     if( !dbus_connection_send_with_reply(bus, req, &pc, -1) )
 	goto EXIT;
 
+    if( !pc )
+	goto EXIT;
+
     if( !dbus_pending_call_set_notify(pc, xup_properties_get_all_cb,
 				      strdup(path), free) )
 	goto EXIT;

modules/cpu-keepalive.c

@@ -557,6 +557,11 @@ cpu_keepalive_verify_name(const char *name)
     goto EXIT;
   }
 
+  if( !pc )
+  {
+    goto EXIT;
+  }
+
   key = g_strdup(name);
 
   if( !dbus_pending_call_set_notify(pc, cpu_keepalive_verify_name_cb,

modules/display.c

@@ -3773,6 +3773,9 @@ static gboolean mdy_renderer_set_state_req(renderer_state_t state)
                                          mdy_renderer_ipc_timeout) )
         goto EXIT;
 
+    if( !mdy_renderer_set_state_pc )
+	goto EXIT;
+
     if( !dbus_pending_call_set_notify(mdy_renderer_set_state_pc,
                                       mdy_renderer_set_state_cb,
                                       GINT_TO_POINTER(state), 0) )
@@ -5333,6 +5336,9 @@ mdy_nameowner_query_req(const char *name)
     if( !dbus_connection_send_with_reply(mdy_nameowner_bus, req, &pc, -1) )
         goto EXIT;
 
+    if( !pc )
+	goto EXIT;
+
     key = strdup(name);
 
     if( !dbus_pending_call_set_notify(pc, mdy_nameowner_query_rsp, key, free) )

modules/radiostates.c

@@ -649,6 +649,9 @@ static gboolean xconnman_set_property_bool(const char *key, gboolean val)
 	if( !dbus_connection_send_with_reply(connman_bus, req, &pc, -1) )
 		goto EXIT;
 
+	if( !pc )
+		goto EXIT;
+
 	if( !dbus_pending_call_set_notify(pc, xconnman_set_property_cb, 0, 0) )
 		goto EXIT;
 
@@ -844,6 +847,9 @@ static gboolean xconnman_get_properties(void)
 	if( !dbus_connection_send_with_reply(connman_bus, req, &pc, -1) )
 		goto EXIT;
 
+	if( !pc )
+		goto EXIT;
+
 	if( !dbus_pending_call_set_notify(pc, xconnman_get_properties_cb, 0, 0) )
 		goto EXIT;
 
@@ -938,6 +944,9 @@ static gboolean xconnman_check_service(void)
 	if( !dbus_connection_send_with_reply(connman_bus, req, &pc, -1) )
 		goto EXIT;
 
+	if( !pc )
+		goto EXIT;
+
 	if( !dbus_pending_call_set_notify(pc, xconnman_check_service_cb, 0, 0) )
 		goto EXIT;