devinet: fix memleak in inetdev_init()

[ Upstream commit 1b49cd71b52403822731dc9f283185d1da355f97 ]

When devinet_sysctl_register() failed, the memory allocated
in neigh_parms_alloc() should be freed.

Fixes: 20e61da7ffcf ("ipv4: fail early when creating netdev named all or default")
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Acked-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/net/ipv4/devinet.c b/net/ipv4/devinet.c
index af3363f4543f672583ea95c06111026ff9bd5d01..6f3c529431865c12acc5895f15bc2419dcb252fe 100644 (file)
--- a/net/ipv4/devinet.c
+++ b/net/ipv4/devinet.c
@@ -262,6 +262,7 @@ static struct in_device *inetdev_init(struct net_device *dev)
        err = devinet_sysctl_register(in_dev);
        if (err) {
                in_dev->dead = 1;
+               neigh_parms_release(&arp_tbl, in_dev->arp_parms);
                in_dev_put(in_dev);
                in_dev = NULL;
                goto out;