2 files changed, 2 insertions, 3 deletions

diff --git a/include/acpi/acinterp.h b/include/acpi/acinterp.h
index 73967c8152d3..ce7c9d653910 100644
--- a/include/acpi/acinterp.h
+++ b/include/acpi/acinterp.h
@@ -253,8 +253,7 @@ acpi_ex_release_mutex(union acpi_operand_object *obj_desc,
 
 void acpi_ex_release_all_mutexes(struct acpi_thread_state *thread);
 
-void acpi_ex_unlink_mutex(union acpi_operand_object *obj_desc,
-                          struct acpi_thread_state *thread);
+void acpi_ex_unlink_mutex(union acpi_operand_object *obj_desc);
 
 /*
  * exprep - ACPI AML execution - prep utilities
diff --git a/include/acpi/acobject.h b/include/acpi/acobject.h
index 5206d61d74a6..04e9735a6742 100644
--- a/include/acpi/acobject.h
+++ b/include/acpi/acobject.h
@@ -155,7 +155,7 @@ struct acpi_object_event {
 struct acpi_object_mutex {
         ACPI_OBJECT_COMMON_HEADER u8 sync_level;        /* 0-15, specified in Mutex() call */
         u16 acquisition_depth;  /* Allow multiple Acquires, same thread */
-        acpi_thread_id owner_thread_id; /* Current owner of the mutex */
+        struct acpi_thread_state *owner_thread; /* Current owner of the mutex */
         acpi_mutex os_mutex;    /* Actual OS synchronization object */
         union acpi_operand_object *prev;        /* Link for list of acquired mutexes */
         union acpi_operand_object *next;        /* Link for list of acquired mutexes */