2 files changed, 4 insertions, 1 deletions

diff --git a/drivers/acpi/hardware/hwsleep.c b/drivers/acpi/hardware/hwsleep.c
index 4d0c677fac19..c0577ca55358 100644
--- a/drivers/acpi/hardware/hwsleep.c
+++ b/drivers/acpi/hardware/hwsleep.c
@@ -398,7 +398,8 @@ acpi_status asmlinkage acpi_enter_sleep_state(u8 sleep_state)
         /* Wait until we enter sleep state */
 
         do {
-                status = acpi_get_register(ACPI_BITREG_WAKE_STATUS, &in_value);
+                status = acpi_get_register_unlocked(ACPI_BITREG_WAKE_STATUS,
+                                                    &in_value);
                 if (ACPI_FAILURE(status)) {
                         return_ACPI_STATUS(status);
                 }
diff --git a/include/acpi/acpixf.h b/include/acpi/acpixf.h
index 3d7ab9e0c9fe..9512f0456ad1 100644
--- a/include/acpi/acpixf.h
+++ b/include/acpi/acpixf.h
@@ -314,6 +314,8 @@ acpi_resource_to_address64(struct acpi_resource *resource,
  */
 acpi_status acpi_get_register(u32 register_id, u32 * return_value);
 
+acpi_status acpi_get_register_unlocked(u32 register_id, u32 *return_value);
+
 acpi_status acpi_set_register(u32 register_id, u32 value);
 
 acpi_status