Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6 into lvs-next-2.6

[pandora-kernel.git] / drivers / acpi / event.c

diff --git a/drivers/acpi/event.c b/drivers/acpi/event.c
index 5c95863..0c24bd4 100644 (file)
--- a/drivers/acpi/event.c
+++ b/drivers/acpi/event.c
@@ -102,6 +102,7 @@ static unsigned int acpi_system_poll_event(struct file *file, poll_table * wait)
 }
 
 static const struct file_operations acpi_system_event_ops = {
+       .owner = THIS_MODULE,
        .open = acpi_system_open_event,
        .read = acpi_system_read_event,
        .release = acpi_system_close_event,
@@ -109,6 +110,34 @@ static const struct file_operations acpi_system_event_ops = {
 };
 #endif /* CONFIG_ACPI_PROC_EVENT */
 
+/* ACPI notifier chain */
+static BLOCKING_NOTIFIER_HEAD(acpi_chain_head);
+
+int acpi_notifier_call_chain(struct acpi_device *dev, u32 type, u32 data)
+{
+       struct acpi_bus_event event;
+
+       strcpy(event.device_class, dev->pnp.device_class);
+       strcpy(event.bus_id, dev->pnp.bus_id);
+       event.type = type;
+       event.data = data;
+       return (blocking_notifier_call_chain(&acpi_chain_head, 0, (void *)&event)
+                        == NOTIFY_BAD) ? -EINVAL : 0;
+}
+EXPORT_SYMBOL(acpi_notifier_call_chain);
+
+int register_acpi_notifier(struct notifier_block *nb)
+{
+       return blocking_notifier_chain_register(&acpi_chain_head, nb);
+}
+EXPORT_SYMBOL(register_acpi_notifier);
+
+int unregister_acpi_notifier(struct notifier_block *nb)
+{
+       return blocking_notifier_chain_unregister(&acpi_chain_head, nb);
+}
+EXPORT_SYMBOL(unregister_acpi_notifier);
+
 #ifdef CONFIG_NET
 static unsigned int acpi_event_seqnum;
 struct acpi_genl_event {
@@ -266,10 +295,9 @@ static int __init acpi_event_init(void)
 
 #ifdef CONFIG_ACPI_PROC_EVENT
        /* 'event' [R] */
-       entry = create_proc_entry("event", S_IRUSR, acpi_root_dir);
-       if (entry)
-               entry->proc_fops = &acpi_system_event_ops;
-       else
+       entry = proc_create("event", S_IRUSR, acpi_root_dir,
+                           &acpi_system_event_ops);
+       if (!entry)
                return -ENODEV;
 #endif