From 29e47e2173349ee06bd339f7753821c720d50923 Mon Sep 17 00:00:00 2001 From: Ulf Hansson Date: Wed, 2 Sep 2015 10:16:13 +0200 Subject: [PATCH] PM / Domains: Try power off masters in error path of __pm_genpd_poweron() 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 Reviewed-by: Krzysztof Kozlowski Signed-off-by: Rafael J. Wysocki --- drivers/base/power/domain.c | 30 +++++++++++++++++------------- 1 file changed, 17 insertions(+), 13 deletions(-) diff --git a/drivers/base/power/domain.c b/drivers/base/power/domain.c index 416720159e96..62f757250235 100644 --- a/drivers/base/power/domain.c +++ b/drivers/base/power/domain.c @@ -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. -- 2.20.1