linux-kernel - [PATCH 3.16 08/61] net-sysfs: fix netdev_queue_add

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Message-ID: <lsq.1591725832.156394384@decadent.org.uk>
Date:   Tue, 09 Jun 2020 19:03:59 +0100
From:   Ben Hutchings <ben@...adent.org.uk>
To:     linux-kernel@...r.kernel.org, stable@...r.kernel.org
CC:     akpm@...ux-foundation.org, Denis Kirjanov <kda@...ux-powerpc.org>,
        "David S. Miller" <davem@...emloft.net>,
        "Eric Dumazet" <edumazet@...gle.com>,
        "Jouni Hogander" <jouni.hogander@...kie.com>
Subject: [PATCH 3.16 08/61] net-sysfs: fix netdev_queue_add_kobject() breakage

3.16.85-rc1 review patch.  If anyone has any objections, please let me know.

------------------

From: Eric Dumazet <edumazet@...gle.com>

commit 48a322b6f9965b2f1e4ce81af972f0e287b07ed0 upstream.

kobject_put() should only be called in error path.

Fixes: b8eb718348b8 ("net-sysfs: Fix reference count leak in rx|netdev_queue_add_kobject")
Signed-off-by: Eric Dumazet <edumazet@...gle.com>
Cc: Jouni Hogander <jouni.hogander@...kie.com>
Signed-off-by: David S. Miller <davem@...emloft.net>
Signed-off-by: Ben Hutchings <ben@...adent.org.uk>
---
 net/core/net-sysfs.c | 1 +
 1 file changed, 1 insertion(+)

--- a/net/core/net-sysfs.c
+++ b/net/core/net-sysfs.c
@@ -1158,6 +1158,7 @@ static int netdev_queue_add_kobject(stru
 #endif
 
 	kobject_uevent(kobj, KOBJ_ADD);
+	return 0;
 
 err:
 	kobject_put(kobj);