The OPPs which are never successfully added using _opp_add() are not required to be freed with the _opp_remove() routine, as a simple kfree() is enough for them.
Introduce a new light weight routine _opp_free(), which will do that.
That also helps us removing the 'notify' parameter to _opp_remove(), which isn't required anymore.
Note that _opp_free() contains a call to _remove_opp_table() as the OPP table might have been added for this very OPP only. The _remove_opp_table() routine returns quickly if there are more OPPs in the table. This will be simplified in later patches though.
Signed-off-by: Viresh Kumar viresh.kumar@linaro.org Reviewed-by: Stephen Boyd sboyd@codeaurora.org --- drivers/base/power/opp/core.c | 20 +++++++++++--------- drivers/base/power/opp/of.c | 2 +- drivers/base/power/opp/opp.h | 2 +- 3 files changed, 13 insertions(+), 11 deletions(-)
diff --git a/drivers/base/power/opp/core.c b/drivers/base/power/opp/core.c index 422482575954..ea5b90e0882c 100644 --- a/drivers/base/power/opp/core.c +++ b/drivers/base/power/opp/core.c @@ -929,6 +929,12 @@ static void _remove_opp_table(struct opp_table *opp_table) _kfree_device_rcu); }
+void _opp_free(struct dev_pm_opp *opp, struct opp_table *opp_table) +{ + kfree(opp); + _remove_opp_table(opp_table); +} + /** * _kfree_opp_rcu() - Free OPP RCU handler * @head: RCU head @@ -944,7 +950,6 @@ static void _kfree_opp_rcu(struct rcu_head *head) * _opp_remove() - Remove an OPP from a table definition * @opp_table: points back to the opp_table struct this opp belongs to * @opp: pointer to the OPP to remove - * @notify: OPP_EVENT_REMOVE notification should be sent or not * * This function removes an opp definition from the opp table. * @@ -952,16 +957,13 @@ static void _kfree_opp_rcu(struct rcu_head *head) * It is assumed that the caller holds required mutex for an RCU updater * strategy. */ -void _opp_remove(struct opp_table *opp_table, struct dev_pm_opp *opp, - bool notify) +static void _opp_remove(struct opp_table *opp_table, struct dev_pm_opp *opp) { /* * Notify the changes in the availability of the operable * frequency/voltage list. */ - if (notify) - srcu_notifier_call_chain(&opp_table->srcu_head, - OPP_EVENT_REMOVE, opp); + srcu_notifier_call_chain(&opp_table->srcu_head, OPP_EVENT_REMOVE, opp); opp_debug_remove_one(opp); list_del_rcu(&opp->node); call_srcu(&opp_table->srcu_head.srcu, &opp->rcu_head, _kfree_opp_rcu); @@ -1008,7 +1010,7 @@ void dev_pm_opp_remove(struct device *dev, unsigned long freq) goto unlock; }
- _opp_remove(opp_table, opp, true); + _opp_remove(opp_table, opp); unlock: mutex_unlock(&opp_table_lock); } @@ -1200,7 +1202,7 @@ int _opp_add_v1(struct device *dev, unsigned long freq, long u_volt, return 0;
free_opp: - _opp_remove(opp_table, new_opp, false); + _opp_free(new_opp, opp_table); unlock: mutex_unlock(&opp_table_lock); return ret; @@ -1912,7 +1914,7 @@ void _dev_pm_opp_remove_table(struct device *dev, bool remove_all) /* Free static OPPs */ list_for_each_entry_safe(opp, tmp, &opp_table->opp_list, node) { if (remove_all || !opp->dynamic) - _opp_remove(opp_table, opp, true); + _opp_remove(opp_table, opp); } } else { _remove_opp_dev(_find_opp_dev(dev, opp_table), opp_table); diff --git a/drivers/base/power/opp/of.c b/drivers/base/power/opp/of.c index c8fe815774ff..67c9eeded4e1 100644 --- a/drivers/base/power/opp/of.c +++ b/drivers/base/power/opp/of.c @@ -362,7 +362,7 @@ static int _opp_add_static_v2(struct device *dev, struct device_node *np) return 0;
free_opp: - _opp_remove(opp_table, new_opp, false); + _opp_free(new_opp, opp_table); unlock: mutex_unlock(&opp_table_lock); return ret; diff --git a/drivers/base/power/opp/opp.h b/drivers/base/power/opp/opp.h index 0f23a1059605..334f7570df32 100644 --- a/drivers/base/power/opp/opp.h +++ b/drivers/base/power/opp/opp.h @@ -194,8 +194,8 @@ struct opp_table *_find_opp_table(struct device *dev); struct opp_device *_add_opp_dev(const struct device *dev, struct opp_table *opp_table); void _dev_pm_opp_remove_table(struct device *dev, bool remove_all); struct dev_pm_opp *_opp_allocate(struct device *dev, struct opp_table **opp_table); +void _opp_free(struct dev_pm_opp *opp, struct opp_table *opp_table); int _opp_add(struct device *dev, struct dev_pm_opp *new_opp, struct opp_table *opp_table); -void _opp_remove(struct opp_table *opp_table, struct dev_pm_opp *opp, bool notify); int _opp_add_v1(struct device *dev, unsigned long freq, long u_volt, bool dynamic); void _dev_pm_opp_cpumask_remove_table(const struct cpumask *cpumask, bool of);