linux-kernel - [PATCH] acpiphp: fix use of list_for

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Date:	Sun, 29 Oct 2006 03:39:43 +0900
From:	Akinobu Mita <akinobu.mita@...il.com>
To:	linux-kernel@...r.kernel.org
Cc:	Greg Kroah-Hartman <gregkh@...e.de>,
	Kristen Carlson Accardi <kristen.c.accardi@...el.com>
Subject: [PATCH] acpiphp: fix use of list_for_each macro

This patch fixes invalid usage of list_for_each()

list_for_each (node, &bridge_list) {
	bridge = (struct acpiphp_bridge *)node;
	...
}

This code works while the member of list node is located at the
head of struct acpiphp_bridge.

Cc: Greg Kroah-Hartman <gregkh@...e.de>
Cc: Kristen Carlson Accardi <kristen.c.accardi@...el.com>
Signed-off-by: Akinobu Mita <akinobu.mita@...il.com>

 drivers/pci/hotplug/acpiphp_glue.c |    8 ++------
 1 file changed, 2 insertions(+), 6 deletions(-)

Index: work-fault-inject/drivers/pci/hotplug/acpiphp_glue.c
===================================================================
--- work-fault-inject.orig/drivers/pci/hotplug/acpiphp_glue.c
+++ work-fault-inject/drivers/pci/hotplug/acpiphp_glue.c
@@ -1693,14 +1693,10 @@ void __exit acpiphp_glue_exit(void)
  */
 int __init acpiphp_get_num_slots(void)
 {
-	struct list_head *node;
 	struct acpiphp_bridge *bridge;
-	int num_slots;
-
-	num_slots = 0;
+	int num_slots = 0;
 
-	list_for_each (node, &bridge_list) {
-		bridge = (struct acpiphp_bridge *)node;
+	list_for_each_entry (bridge, &bridge_list, list) {
 		dbg("Bus %04x:%02x has %d slot%s\n",
 				pci_domain_nr(bridge->pci_bus),
 				bridge->pci_bus->number, bridge->nr_slots,
-
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