Updated diskmg bug on Bpi M2 Zero

web/SystemAO/disk/diskmg.html

@@ -565,7 +565,7 @@
                         var partitions = data[1];
                        for (var i = 0; i < disks.length; i++){
                            var thisDisk = disks[i]["children"];
-                           if (thisDisk === undefined){
+                           if (thisDisk === undefined || thisDisk === null){
                                break;
                            }
                            for (var j =0; j < thisDisk.length; j++){
@@ -648,7 +648,7 @@
                       for (var i =0; i < diskInfo.length; i++){
                           var thisDisk = diskInfo[i];
                           var diskID = thisDisk["name"];
-                          if (thisDisk["children"] === undefined){
+                          if (thisDisk["children"] === undefined || thisDisk["children"] === null){
                               //This disk do not have any child. Assume a large read-only raw partition.
                               disks[diskID] = {"partitionsTotalSize":0,"partitionNames":["Hotplug"],"partitionID":["✖"],"partitionVolume":[0],"Type":[thisPart["type"]],"Mounted":[thisPart["mountpoint"] !== null],"Format":[""]};
                               break;