diff options
| -rw-r--r-- | drivers/base/power/main.c | 5 | ||||
| -rw-r--r-- | kernel/power/suspend.c | 19 |
2 files changed, 21 insertions, 3 deletions
diff --git a/drivers/base/power/main.c b/drivers/base/power/main.c index f64e5b819e5c..ea1732ed7a9d 100644 --- a/drivers/base/power/main.c +++ b/drivers/base/power/main.c @@ -1105,6 +1105,11 @@ static int __device_suspend_noirq(struct device *dev, pm_message_t state, bool a if (async_error) goto Complete; + if (pm_wakeup_pending()) { + async_error = -EBUSY; + goto Complete; + } + if (dev->power.syscore || dev->power.direct_complete) goto Complete; diff --git a/kernel/power/suspend.c b/kernel/power/suspend.c index 0c61713b6e5c..5cf232795318 100644 --- a/kernel/power/suspend.c +++ b/kernel/power/suspend.c @@ -108,19 +108,32 @@ static void s2idle_loop(void) { pm_pr_dbg("suspend-to-idle\n"); - while (!dpm_suspend_noirq(PMSG_SUSPEND)) { + for (;;) { + int error; + + dpm_noirq_begin(); + /* * Suspend-to-idle equals * frozen processes + suspended devices + idle processors. * Thus freeze_enter() should be called right after * all devices have been suspended. */ - freeze_enter(); + error = dpm_noirq_suspend_devices(PMSG_SUSPEND); + if (!error) + freeze_enter(); + + dpm_noirq_resume_devices(PMSG_RESUME); + if (error && (error != -EBUSY || !pm_wakeup_pending())) { + dpm_noirq_end(); + break; + } if (freeze_ops && freeze_ops->wake) freeze_ops->wake(); - dpm_resume_noirq(PMSG_RESUME); + dpm_noirq_end(); + if (freeze_ops && freeze_ops->sync) freeze_ops->sync(); |