1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/acpi/acpica/evmisc.c b/drivers/acpi/acpica/evmisc.c
index df0aea9a8cfd..fcaed9fb44ff 100644
--- a/drivers/acpi/acpica/evmisc.c
+++ b/drivers/acpi/acpica/evmisc.c
@@ -553,7 +553,7 @@ acpi_status acpi_ev_release_global_lock(void)
         acpi_gbl_global_lock_acquired = FALSE;
 
         /* Release the local GL mutex */
-        acpi_ev_global_lock_thread_id = NULL;
+        acpi_ev_global_lock_thread_id = 0;
         acpi_ev_global_lock_acquired = 0;
         acpi_os_release_mutex(acpi_gbl_global_lock_mutex->mutex.os_mutex);
         return_ACPI_STATUS(status);