1 files changed, 10 insertions, 0 deletions

diff --git a/drivers/acpi/sleep/main.c b/drivers/acpi/sleep/main.c
index acfb01b8ec82..048295ec3707 100644
--- a/drivers/acpi/sleep/main.c
+++ b/drivers/acpi/sleep/main.c
@@ -257,6 +257,15 @@ static int acpi_hibernation_enter(void)
         return ACPI_SUCCESS(status) ? 0 : -EFAULT;
 }
 
+static void acpi_hibernation_leave(void)
+{
+        /*
+         * If ACPI is not enabled by the BIOS and the boot kernel, we need to
+         * enable it here.
+         */
+        acpi_enable();
+}
+
 static void acpi_hibernation_finish(void)
 {
         acpi_leave_sleep_state(ACPI_STATE_S4);
@@ -288,6 +297,7 @@ static struct platform_hibernation_ops acpi_hibernation_ops = {
         .finish = acpi_hibernation_finish,
         .prepare = acpi_hibernation_prepare,
         .enter = acpi_hibernation_enter,
+        .leave = acpi_hibernation_leave,
         .pre_restore = acpi_hibernation_pre_restore,
         .restore_cleanup = acpi_hibernation_restore_cleanup,
 };