dm: Fix panic in openapi (pingcap#8638) (pingcap#8660)

close pingcap#8637
ti-chi-bot · Apr 5, 2023 · 7a7ca72 · 7a7ca72
1 parent 6313cbf
commit 7a7ca72
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/dm/master/openapi_view.go b/dm/master/openapi_view.go
@@ -114,7 +114,7 @@ func (s *Server) GetDocJSON(c *gin.Context) {
 	if info, err := s.getClusterInfo(c.Request.Context()); err != nil {
 		_ = c.Error(err)
 		return
-	} else if info.Topology.MasterTopologyList != nil && len(*info.Topology.MasterTopologyList) > 0 {
+	} else if info.Topology != nil && info.Topology.MasterTopologyList != nil && len(*info.Topology.MasterTopologyList) > 0 {
 		masterTopos := *info.Topology.MasterTopologyList
 		protocol := "http"
 		if useTLS.Load() {