am a29997ae: am 470f0b3f: Merge "Avoid segv by checking argc in "storage user <mountpoint>""

* commit 'a29997ae260d3d7cf41c40d9c7ba42b761b12d30':
  Avoid segv by checking argc in "storage user <mountpoint>"

CommandListener.cpp

@@ -240,6 +240,10 @@ int CommandListener::StorageCmd::runCommand(SocketClient *cli,
         DIR *dir;
         struct dirent *de;
 
+        if (argc < 3) {
+            cli->sendMsg(ResponseCode::CommandSyntaxError, "Missing Argument: user <mountpoint>", false);
+            return 0;
+        }
         if (!(dir = opendir("/proc"))) {
             cli->sendMsg(ResponseCode::OperationFailed, "Failed to open /proc", true);
             return 0;