Hibernation: Introduce begin() and end() callbacks

Introduce global hibernation callback .end() and rename global
hibernation callback .start() to .begin(), in analogy with the
recent modifications of the global suspend callbacks.

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Signed-off-by: Len Brown <len.brown@intel.com>

1 files changed, 12 insertions, 2 deletions

diff --git a/drivers/acpi/sleep/main.c b/drivers/acpi/sleep/main.c
index c37c4ead95c9..31e8e58e1cec 100644
--- a/drivers/acpi/sleep/main.c
+++ b/drivers/acpi/sleep/main.c
@@ -281,7 +281,7 @@ static struct dmi_system_id __initdata acpisleep_dmi_table[] = {
 #endif /* CONFIG_SUSPEND */
 
 #ifdef CONFIG_HIBERNATION
-static int acpi_hibernation_start(void)
+static int acpi_hibernation_begin(void)
 {
         acpi_target_sleep_state = ACPI_STATE_S4;
         return 0;
@@ -341,6 +341,15 @@ static void acpi_hibernation_finish(void)
         acpi_target_sleep_state = ACPI_STATE_S0;
 }
 
+static void acpi_hibernation_end(void)
+{
+        /*
+         * This is necessary in case acpi_hibernation_finish() is not called
+         * during a failing transition to the sleep state.
+         */
+        acpi_target_sleep_state = ACPI_STATE_S0;
+}
+
 static int acpi_hibernation_pre_restore(void)
 {
         acpi_status status;
@@ -356,7 +365,8 @@ static void acpi_hibernation_restore_cleanup(void)
 }
 
 static struct platform_hibernation_ops acpi_hibernation_ops = {
-        .start = acpi_hibernation_start,
+        .begin = acpi_hibernation_begin,
+        .end = acpi_hibernation_end,
         .pre_snapshot = acpi_hibernation_prepare,
         .finish = acpi_hibernation_finish,
         .prepare = acpi_hibernation_prepare,