diff --git a/src/userprog/process.c b/src/userprog/process.c
index 5c0b356..efc0f45 100644
--- a/src/userprog/process.c
+++ b/src/userprog/process.c
@@ -40,8 +40,6 @@ struct arg_elem
    that executes process_start for the purpose of starting a user process. */
 struct process_start_data
   {
-    char *cmd; /* Pointer to a copy of the command used to execute the process.
-                  Allocated a page that must be freed by process_start. */
     char *cmd_saveptr; /* Value pointed to by 'saveptr' argument used by
                           successive calls to strtok_r to split 'cmd' into
                           tokens while maintaining state. */
@@ -90,26 +88,22 @@ process_execute (const char *cmd)
   /* Create a new thread to execute the command, by initializing
      it running the function 'start_process' with the appropriate
      arguments. For details of arguments, see 'start_process'. */
-  data.cmd = cmd_copy;
   strlcpy (data.file_name, file_name, FNAME_MAX_LEN + 1);
   sema_init (&data.loaded, 0);
   data.success = false;
 
   tid = thread_create (file_name, PRI_DEFAULT, start_process, &data);
 
-  /* Return TID_ERROR and free resources if starting execution went wrong. */
-  if (tid == TID_ERROR)
-    palloc_free_page (cmd_copy);
-  else
+  /* Wait until process file has finished attempting to load via the child
+     thread before reporting success of starting execution. */
+  if (tid != TID_ERROR)
     {
-      
-      /* Wait until process file has finished attempting to load via the child
-         thread before reporting success of starting execution. */
       sema_down (&data.loaded);
       if (!data.success)
         tid = TID_ERROR;
     }
 
+  palloc_free_page (cmd_copy);
   return tid;
 }
 
@@ -158,7 +152,6 @@ start_process (void *proc_start_data)
   /* If load failed, quit. */
   if (!data->success) 
     {
-      palloc_free_page (data->cmd);
       sema_up (&data->loaded);
       thread_exit ();
     }
@@ -167,7 +160,6 @@ start_process (void *proc_start_data)
      command that executed the process. */
   data->success = process_init_stack (data->cmd_saveptr, &if_.esp, data->file_name);
   bool success = data->success;
-  palloc_free_page (data->cmd);
   sema_up (&data->loaded);
   
   /* If stack initialization failed, free resources and quit. */