This is a note to let you know that I've just added the patch titled
PM / devfreq: Fix leak in devfreq_dev_release()
to the 4.19-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
pm-devfreq-fix-leak-in-devfreq_dev_release.patch
and it can be found in the queue-4.19 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 5693d077595de721f9ddbf9d37f40e5409707dfe Mon Sep 17 00:00:00 2001
From: Boris Brezillon <boris.brezillon@xxxxxxxxxxxxx>
Date: Wed, 9 Aug 2023 13:31:08 +0200
Subject: PM / devfreq: Fix leak in devfreq_dev_release()
From: Boris Brezillon <boris.brezillon@xxxxxxxxxxxxx>
commit 5693d077595de721f9ddbf9d37f40e5409707dfe upstream.
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@xxxxxxxxxxxxxxx>
Signed-off-by: Boris Brezillon <boris.brezillon@xxxxxxxxxxxxx>
Reviewed-by: Dhruva Gole <d-gole@xxxxxx>
Signed-off-by: Chanwoo Choi <cw00.choi@xxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/devfreq/devfreq.c | 1 +
1 file changed, 1 insertion(+)
--- a/drivers/devfreq/devfreq.c
+++ b/drivers/devfreq/devfreq.c
@@ -582,6 +582,7 @@ static void devfreq_dev_release(struct d
devfreq->profile->exit(devfreq->dev.parent);
mutex_destroy(&devfreq->lock);
+ srcu_cleanup_notifier_head(&devfreq->transition_notifier_list);
kfree(devfreq);
}
Patches currently in stable-queue which might be from boris.brezillon@xxxxxxxxxxxxx are
queue-4.19/pm-devfreq-fix-leak-in-devfreq_dev_release.patch
