1 files changed, 2 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);
                 }