AcoSail/kernel_optimize_test
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PM / Domains: Do not restore all devices on power off error

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Since every device in a PM domain has its own need_restore
flag, which is set by __pm_genpd_save_device(), there's no need to
walk the domain's device list and restore all devices on an error
from one of the drivers' .runtime_suspend() callbacks.

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
This commit is contained in:
Rafael J. Wysocki 2011-07-12 00:39:48 +02:00
parent c6d22b3726
commit 697a7f3727
1 changed files with 4 additions and 9 deletions
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13
drivers/base/power/domain.c
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@ -269,8 +269,10 @@ static int pm_genpd_poweroff(struct generic_pm_domain *genpd)
list_for_each_entry_reverse(dle, &genpd->dev_list, node) {
ret = __pm_genpd_save_device(dle, genpd);
if (ret)
goto err_dev;
if (ret) {
genpd_set_active(genpd);
goto out;
}
if (genpd_abort_poweroff(genpd))
goto out;
@ -311,13 +313,6 @@ static int pm_genpd_poweroff(struct generic_pm_domain *genpd)
genpd->poweroff_task = NULL;
wake_up_all(&genpd->status_wait_queue);
return ret;
err_dev:
list_for_each_entry_continue(dle, &genpd->dev_list, node)
__pm_genpd_restore_device(dle, genpd);
genpd_set_active(genpd);
goto out;
}
/**