OPP: Return opp from dev_pm_opp_get()

For convenience of users, return back the pointer to the opp from
dev_pm_opp_get(), so they can do:

	opp = dev_pm_opp_get(tmp_opp);

No intentional functional impact.

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>

diff --git a/drivers/opp/core.c b/drivers/opp/core.c
index e63a9b009df1012dbd9d404a91b2d27555944638..150439a18b87ca28a8d8fd58eeee03b4a397d994 100644 (file)
--- a/drivers/opp/core.c
+++ b/drivers/opp/core.c
@@ -1188,8 +1188,8 @@ static void _find_current_opp(struct device *dev, struct opp_table *opp_table)
         */
        if (IS_ERR(opp)) {
                mutex_lock(&opp_table->lock);
-               opp = list_first_entry(&opp_table->opp_list, struct dev_pm_opp, node);
-               dev_pm_opp_get(opp);
+               opp = dev_pm_opp_get(list_first_entry(&opp_table->opp_list,
+                                                     struct dev_pm_opp, node));
                mutex_unlock(&opp_table->lock);
        }
 
@@ -1329,8 +1329,7 @@ static int _set_opp(struct device *dev, struct opp_table *opp_table,
        dev_pm_opp_put(old_opp);
 
        /* Make sure current_opp doesn't get freed */
-       dev_pm_opp_get(opp);
-       opp_table->current_opp = opp;
+       opp_table->current_opp = dev_pm_opp_get(opp);
 
        return ret;
 }
@@ -1724,9 +1723,10 @@ static void _opp_kref_release(struct kref *kref)
        kfree(opp);
 }
 
-void dev_pm_opp_get(struct dev_pm_opp *opp)
+struct dev_pm_opp *dev_pm_opp_get(struct dev_pm_opp *opp)
 {
        kref_get(&opp->kref);
+       return opp;
 }
 EXPORT_SYMBOL_GPL(dev_pm_opp_get);
 
@@ -2706,8 +2706,7 @@ struct dev_pm_opp *dev_pm_opp_xlate_required_opp(struct opp_table *src_table,
 
                        list_for_each_entry(opp, &src_table->opp_list, node) {
                                if (opp == src_opp) {
-                                       dest_opp = opp->required_opps[i];
-                                       dev_pm_opp_get(dest_opp);
+                                       dest_opp = dev_pm_opp_get(opp->required_opps[i]);
                                        break;
                                }
                        }

diff --git a/include/linux/pm_opp.h b/include/linux/pm_opp.h
index c247317aae38aa83f4fde120e3fd87f6e57446b3..5e4c3428b139a6434012351e67b4d545bb2703d5 100644 (file)
--- a/include/linux/pm_opp.h
+++ b/include/linux/pm_opp.h
@@ -161,7 +161,7 @@ struct dev_pm_opp *dev_pm_opp_find_bw_ceil(struct device *dev,
 struct dev_pm_opp *dev_pm_opp_find_bw_floor(struct device *dev,
                                           unsigned int *bw, int index);
 
-void dev_pm_opp_get(struct dev_pm_opp *opp);
+struct dev_pm_opp *dev_pm_opp_get(struct dev_pm_opp *opp);
 void dev_pm_opp_put(struct dev_pm_opp *opp);
 
 int dev_pm_opp_add_dynamic(struct device *dev, struct dev_pm_opp_data *opp);
@@ -345,7 +345,10 @@ static inline struct dev_pm_opp *dev_pm_opp_find_bw_floor(struct device *dev,
        return ERR_PTR(-EOPNOTSUPP);
 }
 
-static inline void dev_pm_opp_get(struct dev_pm_opp *opp) {}
+static inline struct dev_pm_opp *dev_pm_opp_get(struct dev_pm_opp *opp)
+{
+       return opp;
+}
 
 static inline void dev_pm_opp_put(struct dev_pm_opp *opp) {}