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PM / Domains: Try power off masters in error path of __pm_genpd_poweron()

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While powering up a genpd, its domain masters are first being powered up.
In the error path of __pm_genpd_poweron(), we didn't care to try power off
these domain masters. Let's deal with that to avoid leaving unused PM
domains powered.

Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Reviewed-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This commit is contained in:
Ulf Hansson 2015-09-02 10:16:13 +02:00 committed by Rafael J. Wysocki
parent 8bb6944e5a
commit 29e47e2173
1 changed files with 17 additions and 13 deletions
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30
drivers/base/power/domain.c
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@ -212,6 +212,18 @@ static int genpd_power_off(struct generic_pm_domain *genpd, bool timed)
return ret;
}
/**
* genpd_queue_power_off_work - Queue up the execution of pm_genpd_poweroff().
* @genpd: PM domait to power off.
*
* Queue up the execution of pm_genpd_poweroff() unless it's already been done
* before.
*/
static void genpd_queue_power_off_work(struct generic_pm_domain *genpd)
{
queue_work(pm_wq, &genpd->power_off_work);
}
/**
* __pm_genpd_poweron - Restore power to a given PM domain and its masters.
* @genpd: PM domain to power up.
@ -259,8 +271,12 @@ static int __pm_genpd_poweron(struct generic_pm_domain *genpd)
return 0;
err:
list_for_each_entry_continue_reverse(link, &genpd->slave_links, slave_node)
list_for_each_entry_continue_reverse(link,
&genpd->slave_links,
slave_node) {
genpd_sd_counter_dec(link->master);
genpd_queue_power_off_work(link->master);
}
return ret;
}
@ -348,18 +364,6 @@ static int genpd_dev_pm_qos_notifier(struct notifier_block *nb,
return NOTIFY_DONE;
}
/**
* genpd_queue_power_off_work - Queue up the execution of pm_genpd_poweroff().
* @genpd: PM domait to power off.
*
* Queue up the execution of pm_genpd_poweroff() unless it's already been done
* before.
*/
static void genpd_queue_power_off_work(struct generic_pm_domain *genpd)
{
queue_work(pm_wq, &genpd->power_off_work);
}
/**
* pm_genpd_poweroff - Remove power from a given PM domain.
* @genpd: PM domain to power down.