From: Jiang Liu <jiang.liu@xxxxxxxxxx> Function dock_add() will be called multiple times if there are multiple dock stations, which causes acpi_dock_notifier_list being initialized multiple times. So move initialization of acpi_dock_notifier_list from dock_add() to acpi_dock_init(). Signed-off-by: Jiang Liu <jiang.liu@xxxxxxxxxx> Cc: Len Brown <lenb@xxxxxxxxxx> Cc: "Rafael J. Wysocki" <rjw@xxxxxxx> Cc: linux-acpi@xxxxxxxxxxxxxxx Cc: linux-kernel@xxxxxxxxxxxxxxx --- drivers/acpi/dock.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/acpi/dock.c b/drivers/acpi/dock.c index 14de9f4..e944e39 100644 --- a/drivers/acpi/dock.c +++ b/drivers/acpi/dock.c @@ -1007,7 +1007,6 @@ static int __init dock_add(acpi_handle handle) mutex_init(&dock_station->hp_lock); spin_lock_init(&dock_station->dd_lock); INIT_LIST_HEAD(&dock_station->sibling); - ATOMIC_INIT_NOTIFIER_HEAD(&dock_notifier_list); INIT_LIST_HEAD(&dock_station->dependent_devices); /* we want the dock device to send uevents */ @@ -1078,6 +1077,7 @@ int __init acpi_dock_init(void) return 0; } + ATOMIC_INIT_NOTIFIER_HEAD(&dock_notifier_list); register_acpi_bus_notifier(&dock_acpi_notifier); pr_info(PREFIX "%s: %d docks/bays found\n", ACPI_DOCK_DRIVER_DESCRIPTION, dock_station_count); -- 1.8.1.2 -- To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html