From: Alexander Nyberg Date: Wed, 10 Aug 2005 17:11:36 +0000 (-0700) Subject: [PATCH] ns558 list handling fix X-Git-Tag: v2.6.13-rc7~109 X-Git-Url: http://pilppa.com/gitweb/?a=commitdiff_plain;h=22d0def9d09111513f5a8d38583210620f97d710;p=linux-2.6-omap-h63xx.git [PATCH] ns558 list handling fix Need to use list_for_entry_safe(), as we're removing items during the traversal. list_for_each_entry() uses the first ptr also as an iterator, if you kfree() it slab takes it, might poison it and then you try to use it to iterate to the next object in list. Cc: Vojtech Pavlik Cc: Dmitry Torokhov Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- diff --git a/drivers/input/gameport/ns558.c b/drivers/input/gameport/ns558.c index 1ab5f2dc8a2..70f051894a3 100644 --- a/drivers/input/gameport/ns558.c +++ b/drivers/input/gameport/ns558.c @@ -275,9 +275,9 @@ static int __init ns558_init(void) static void __exit ns558_exit(void) { - struct ns558 *ns558; + struct ns558 *ns558, *safe; - list_for_each_entry(ns558, &ns558_list, node) { + list_for_each_entry_safe(ns558, safe, &ns558_list, node) { gameport_unregister_port(ns558->gameport); release_region(ns558->io & ~(ns558->size - 1), ns558->size); kfree(ns558);