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-rw-r--r--net/core/rtnetlink.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/net/core/rtnetlink.c b/net/core/rtnetlink.c
index 28050e53ecb0..ba5301d6df84 100644
--- a/net/core/rtnetlink.c
+++ b/net/core/rtnetlink.c
@@ -1832,7 +1832,6 @@ static int rtnl_fill_ifinfo(struct sk_buff *skb,
if (tgt_netnsid >= 0 && nla_put_s32(skb, IFLA_TARGET_NETNSID, tgt_netnsid))
goto nla_put_failure;
- qdisc = rtnl_dereference(dev->qdisc);
if (nla_put_string(skb, IFLA_IFNAME, dev->name) ||
nla_put_u32(skb, IFLA_TXQLEN, dev->tx_queue_len) ||
nla_put_u8(skb, IFLA_OPERSTATE,
@@ -1857,8 +1856,6 @@ static int rtnl_fill_ifinfo(struct sk_buff *skb,
#endif
put_master_ifindex(skb, dev) ||
nla_put_u8(skb, IFLA_CARRIER, netif_carrier_ok(dev)) ||
- (qdisc &&
- nla_put_string(skb, IFLA_QDISC, qdisc->ops->id)) ||
nla_put_ifalias(skb, dev) ||
nla_put_u32(skb, IFLA_CARRIER_CHANGES,
atomic_read(&dev->carrier_up_count) +
@@ -1924,6 +1921,9 @@ static int rtnl_fill_ifinfo(struct sk_buff *skb,
goto nla_put_failure;
rcu_read_lock();
+ qdisc = rcu_dereference(dev->qdisc);
+ if (qdisc && nla_put_string(skb, IFLA_QDISC, qdisc->ops->id))
+ goto nla_put_failure_rcu;
if (rtnl_fill_link_af(skb, dev, ext_filter_mask))
goto nla_put_failure_rcu;
if (rtnl_fill_link_ifmap(skb, dev))