From 5a0a2f304612bd63948177fef05987f4bcaddcaf Mon Sep 17 00:00:00 2001 From: "Rafael J. Wysocki" Date: Fri, 11 Jan 2008 01:25:21 +0100 Subject: [PATCH] Hibernation: Invoke suspend notifications after console switch Following the recent change in the suspend code path, switch consoles before calling PM notifiers during hibernation. Signed-off-by: Rafael J. Wysocki Signed-off-by: Len Brown --- kernel/power/disk.c | 17 +++++++---------- 1 file changed, 7 insertions(+), 10 deletions(-) diff --git a/kernel/power/disk.c b/kernel/power/disk.c index 53c22d9cf577..d09da0895174 100644 --- a/kernel/power/disk.c +++ b/kernel/power/disk.c @@ -458,20 +458,13 @@ static void power_down(void) while(1); } -static void unprepare_processes(void) -{ - thaw_processes(); - pm_restore_console(); -} - static int prepare_processes(void) { int error = 0; - pm_prepare_console(); if (freeze_processes()) { error = -EBUSY; - unprepare_processes(); + thaw_processes(); } return error; } @@ -491,6 +484,7 @@ int hibernate(void) goto Unlock; } + pm_prepare_console(); error = pm_notifier_call_chain(PM_HIBERNATION_PREPARE); if (error) goto Exit; @@ -530,11 +524,12 @@ int hibernate(void) swsusp_free(); } Thaw: - unprepare_processes(); + thaw_processes(); Finish: free_basic_memory_bitmaps(); Exit: pm_notifier_call_chain(PM_POST_HIBERNATION); + pm_restore_console(); atomic_inc(&snapshot_device_available); Unlock: mutex_unlock(&pm_mutex); @@ -603,6 +598,7 @@ static int software_resume(void) goto Unlock; } + pm_prepare_console(); error = pm_notifier_call_chain(PM_RESTORE_PREPARE); if (error) goto Finish; @@ -626,11 +622,12 @@ static int software_resume(void) printk(KERN_ERR "PM: Restore failed, recovering.\n"); swsusp_free(); - unprepare_processes(); + thaw_processes(); Done: free_basic_memory_bitmaps(); Finish: pm_notifier_call_chain(PM_POST_RESTORE); + pm_restore_console(); atomic_inc(&snapshot_device_available); /* For success case, the suspend path will release the lock */ Unlock: -- 2.20.1