diff options
Diffstat (limited to 'kernel/power/main.c')
| -rw-r--r-- | kernel/power/main.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/kernel/power/main.c b/kernel/power/main.c index fc45ed22620f..4d26ad394fb3 100644 --- a/kernel/power/main.c +++ b/kernel/power/main.c @@ -23,6 +23,8 @@ #include "power.h" +BLOCKING_NOTIFIER_HEAD(pm_chain_head); + /*This is just an arbitrary number */ #define FREE_PAGE_NUMBER (100) @@ -78,6 +80,10 @@ static int suspend_prepare(suspend_state_t state) if (!pm_ops || !pm_ops->enter) return -EPERM; + error = pm_notifier_call_chain(PM_SUSPEND_PREPARE); + if (error) + goto Finish; + pm_prepare_console(); if (freeze_processes()) { @@ -125,6 +131,8 @@ static int suspend_prepare(suspend_state_t state) Thaw: thaw_processes(); pm_restore_console(); + Finish: + pm_notifier_call_chain(PM_POST_SUSPEND); return error; } @@ -176,6 +184,7 @@ static void suspend_finish(suspend_state_t state) resume_console(); thaw_processes(); pm_restore_console(); + pm_notifier_call_chain(PM_POST_SUSPEND); } |