From 5693d077595de721f9ddbf9d37f40e5409707dfe Mon Sep 17 00:00:00 2001
From: Boris Brezillon <boris.brezillon@collabora.com>
Date: Wed, 9 Aug 2023 13:31:08 +0200
Subject: [PATCH] PM / devfreq: Fix leak in devfreq_dev_release()

srcu_init_notifier_head() allocates resources that need to be released
with a srcu_cleanup_notifier_head() call.

Reported by kmemleak.

Fixes: 0fe3a66410a3 ("PM / devfreq: Add new DEVFREQ_TRANSITION_NOTIFIER notifier")
Cc: <stable@vger.kernel.org>
Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com>
Reviewed-by: Dhruva Gole <d-gole@ti.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
---
 drivers/devfreq/devfreq.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/devfreq/devfreq.c b/drivers/devfreq/devfreq.c
index db50c93c0ac3..474d81831ad3 100644
--- a/drivers/devfreq/devfreq.c
+++ b/drivers/devfreq/devfreq.c
@@ -764,6 +764,7 @@ static void devfreq_dev_release(struct device *dev)
 		dev_pm_opp_put_opp_table(devfreq->opp_table);
 
 	mutex_destroy(&devfreq->lock);
+	srcu_cleanup_notifier_head(&devfreq->transition_notifier_list);
 	kfree(devfreq);
 }