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authorJohannes Berg <johannes@sipsolutions.net>2008-01-11 01:22:23 +0100
committerLen Brown <len.brown@intel.com>2008-02-01 18:30:58 -0500
commitaf258f516b3e4e214121f5d6d53cab32ce0d8010 (patch)
tree9ae8987d51217316aecfc0c04806cc6970cd69e6 /kernel/power
parent17b7a89cfb6ea2ff103785f9b2580e5138b6cfd1 (diff)
Suspend: Invoke suspend notifications after console switch
In order to fix APM emulation it is necessary to enable apm-emulation notifications for suspends triggered in various ways via the suspend notifiers. However, this will cause the systems using APM emulation to lock up between X being needed to switch away from the VT and X already waiting for resume in the APM ioctl. This patch moves the console switch (if enabled) before the suspend notification (and after the resume notification) to avoid this issue. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Signed-off-by: Len Brown <len.brown@intel.com>
Diffstat (limited to 'kernel/power')
-rw-r--r--kernel/power/main.c8
1 files changed, 4 insertions, 4 deletions
diff --git a/kernel/power/main.c b/kernel/power/main.c
index e47214cfeb2d..6a6d5eb3524e 100644
--- a/kernel/power/main.c
+++ b/kernel/power/main.c
@@ -175,12 +175,12 @@ static int suspend_prepare(void)
if (!suspend_ops || !suspend_ops->enter)
return -EPERM;
+ pm_prepare_console();
+
error = pm_notifier_call_chain(PM_SUSPEND_PREPARE);
if (error)
goto Finish;
- pm_prepare_console();
-
if (suspend_freeze_processes()) {
error = -EAGAIN;
goto Thaw;
@@ -200,9 +200,9 @@ static int suspend_prepare(void)
Thaw:
suspend_thaw_processes();
- pm_restore_console();
Finish:
pm_notifier_call_chain(PM_POST_SUSPEND);
+ pm_restore_console();
return error;
}
@@ -309,8 +309,8 @@ int suspend_devices_and_enter(suspend_state_t state)
static void suspend_finish(void)
{
suspend_thaw_processes();
- pm_restore_console();
pm_notifier_call_chain(PM_POST_SUSPEND);
+ pm_restore_console();
}