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-rw-r--r--drivers/acpi/battery.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/acpi/battery.c b/drivers/acpi/battery.c
index b719ab3090bb..ab234791a0ba 100644
--- a/drivers/acpi/battery.c
+++ b/drivers/acpi/battery.c
@@ -1316,7 +1316,7 @@ static int __init acpi_battery_init(void)
static void __exit acpi_battery_exit(void)
{
- async_synchronize_cookie(async_cookie);
+ async_synchronize_cookie(async_cookie + 1);
acpi_bus_unregister_driver(&acpi_battery_driver);
#ifdef CONFIG_ACPI_PROCFS_POWER
acpi_unlock_battery_dir(acpi_battery_dir);