1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/acpi/acpica/tbinstal.c b/drivers/acpi/acpica/tbinstal.c
index f865d5a096de..63e82329a9e8 100644
--- a/drivers/acpi/acpica/tbinstal.c
+++ b/drivers/acpi/acpica/tbinstal.c
@@ -472,7 +472,7 @@ acpi_status acpi_tb_delete_namespace_by_owner(u32 table_index)
          * lock may block, and also since the execution of a namespace walk
          * must be allowed to use the interpreter.
          */
-        acpi_ut_release_mutex(ACPI_MTX_INTERPRETER);
+        (void)acpi_ut_release_mutex(ACPI_MTX_INTERPRETER);
         status = acpi_ut_acquire_write_lock(&acpi_gbl_namespace_rw_lock);
 
         acpi_ns_delete_namespace_by_owner(owner_id);