From 71e0a22801c0699f67ea40ed96e0a7d7d9e0f318 Mon Sep 17 00:00:00 2001
From: Luben Tuikov <luben.tuikov@amd.com>
Date: Fri, 21 Oct 2022 03:34:21 -0400
Subject: [PATCH] kobject: Add kset_put() if kset_register() fails
X-check-string-leak: v1.0

If kset_register() fails, we call kset_put() before returning the
error. This makes sure that we free memory allocated by kobj_set_name()
for the kset, since kset_register() cannot be called unless the kset has
a name, usually gotten via kobj_set_name(&kset->kobj, format, ...);

Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Rafael J. Wysocki <rafael@kernel.org>
Cc: Yang Yingliang <yangyingliang@huawei.com>
Cc: Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Signed-off-by: Luben Tuikov <luben.tuikov@amd.com>
---
 lib/kobject.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/lib/kobject.c b/lib/kobject.c
index a0b2dbfcfa2334..c122b979f2b75e 100644
--- a/lib/kobject.c
+++ b/lib/kobject.c
@@ -844,8 +844,10 @@ int kset_register(struct kset *k)
 
 	kset_init(k);
 	err = kobject_add_internal(&k->kobj);
-	if (err)
+	if (err) {
+		kset_put(k);
 		return err;
+	}
 	kobject_uevent(&k->kobj, KOBJ_ADD);
 	return 0;
 }
-- 
2.38.0-rc2