[PATCH] Fix small memory leak in mi-cmd-var.c

[Nick Roberts <nickrob@snap.net.nz>]

This patch fixes a small memory leak (sizeof (struct varobj *) = 4)
that occurs each time -var-update is issued when rootcount = 0.

-- 
Nick                                           http://www.inet.net.nz/~nickrob



2006-12-08  Nick Roberts  <nickrob@snap.net.nz>

	* mi/mi-cmd-var.c (mi_cmd_var_update): Fix memory leak.


*** mi-cmd-var.c	30 Nov 2006 11:45:31 +1300	1.26
--- mi-cmd-var.c	08 Dec 2006 15:04:16 +1300	
*************** mi_cmd_var_update (char *command, char *
*** 500,509 ****
    if ((*name == '*') && (*(name + 1) == '\0'))
      {
        nv = varobj_list (&rootlist);
        if (mi_version (uiout) <= 1)
!         cleanup = make_cleanup_ui_out_tuple_begin_end (uiout, "changelist");
        else
!         cleanup = make_cleanup_ui_out_list_begin_end (uiout, "changelist");
        if (nv <= 0)
  	{
  	  do_cleanups (cleanup);
--- 500,510 ----
    if ((*name == '*') && (*(name + 1) == '\0'))
      {
        nv = varobj_list (&rootlist);
+       cleanup = make_cleanup (xfree, rootlist);
        if (mi_version (uiout) <= 1)
!         make_cleanup_ui_out_tuple_begin_end (uiout, "changelist");
        else
!         make_cleanup_ui_out_list_begin_end (uiout, "changelist");
        if (nv <= 0)
  	{
  	  do_cleanups (cleanup);
*************** mi_cmd_var_update (char *command, char *
*** 515,521 ****
  	  varobj_update_one (*cr, print_values);
  	  cr++;
  	}
-       xfree (rootlist);
        do_cleanups (cleanup);
      }
    else
--- 516,521 ----