From: Viresh Kumar <viresh.kumar@linaro.org>
Date: Wed, 29 Jul 2015 10:52:59 +0000 (+0530)
Subject: PM / OPP: Create _remove_device_opp() for freeing dev_opp
X-Git-Tag: accepted/tizen/4.0/unified/20170920.081531~52
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=d783a86b32a9c86a56906123f52b4439593ae02e;p=platform%2Fkernel%2Flinux-exynos.git

PM / OPP: Create _remove_device_opp() for freeing dev_opp

This will be used from multiple places later. Lets create a separate
routine for that.

Reviewed-by: Stephen Boyd <sboyd@codeaurora.org>
Reviewed-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---

diff --git a/drivers/base/power/opp.c b/drivers/base/power/opp.c
index 8c3fd57..7895fdd 100644
--- a/drivers/base/power/opp.c
+++ b/drivers/base/power/opp.c
@@ -449,6 +449,22 @@ static void _kfree_device_rcu(struct rcu_head *head)
 }
 
 /**
+ * _remove_device_opp() - Removes a device OPP table
+ * @dev_opp: device OPP table to be removed.
+ *
+ * Removes/frees device OPP table it it doesn't contain any OPPs.
+ */
+static void _remove_device_opp(struct device_opp *dev_opp)
+{
+	if (!list_empty(&dev_opp->opp_list))
+		return;
+
+	list_del_rcu(&dev_opp->node);
+	call_srcu(&dev_opp->srcu_head.srcu, &dev_opp->rcu_head,
+		  _kfree_device_rcu);
+}
+
+/**
  * _kfree_opp_rcu() - Free OPP RCU handler
  * @head:	RCU head
  */
@@ -481,11 +497,7 @@ static void _opp_remove(struct device_opp *dev_opp,
 	list_del_rcu(&opp->node);
 	call_srcu(&dev_opp->srcu_head.srcu, &opp->rcu_head, _kfree_opp_rcu);
 
-	if (list_empty(&dev_opp->opp_list)) {
-		list_del_rcu(&dev_opp->node);
-		call_srcu(&dev_opp->srcu_head.srcu, &dev_opp->rcu_head,
-			  _kfree_device_rcu);
-	}
+	_remove_device_opp(dev_opp);
 }
 
 /**