linux-kernel - [PATCH 4.9.y] Revert "net: sit: fix memory leak in sit_init

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Message-ID: <1571216634-44834-1-git-send-email-akaher@vmware.com>
Date:   Wed, 16 Oct 2019 14:33:54 +0530
From:   Ajay Kaher <akaher@...are.com>
To:     <gregkh@...uxfoundation.org>
CC:     <davem@...emloft.net>, <kuznet@....inr.ac.ru>, <jmorris@...ei.org>,
        <yoshfuji@...ux-ipv6.org>, <kaber@...sh.net>,
        <netdev@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <stable@...r.kernel.org>, <srivatsab@...are.com>,
        <srivatsa@...il.mit.edu>, <amakhalov@...are.com>,
        <srinidhir@...are.com>, <bvikas@...are.com>, <anishs@...are.com>,
        <vsirnapalli@...are.com>, <srostedt@...are.com>,
        <akaher@...are.com>, Mao Wenan <maowenan@...wei.com>
Subject: [PATCH 4.9.y] Revert "net: sit: fix memory leak in sit_init_net()"

This reverts commit 375d6d454a95ebacb9c6eb0b715da05a4458ffef which is
commit 07f12b26e21ab359261bf75cfcb424fdc7daeb6d upstream.

Unnecessarily calling free_netdev() from sit_init_net().
ipip6_dev_free() of 4.9.y called free_netdev(), so no need
to call again after ipip6_dev_free().

Cc: Mao Wenan <maowenan@...wei.com>
Cc: David S. Miller <davem@...emloft.net>
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Signed-off-by: Ajay Kaher <akaher@...are.com>
---
 net/ipv6/sit.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/net/ipv6/sit.c b/net/ipv6/sit.c
index 47ca2a2..16eba7b 100644
--- a/net/ipv6/sit.c
+++ b/net/ipv6/sit.c
@@ -1856,7 +1856,6 @@ static int __net_init sit_init_net(struct net *net)
 
 err_reg_dev:
 	ipip6_dev_free(sitn->fb_tunnel_dev);
-	free_netdev(sitn->fb_tunnel_dev);
 err_alloc_dev:
 	return err;
 }
-- 
2.7.4