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authorSabrina Dubroca <sd@queasysnail.net>2016-04-22 11:28:02 +0200
committerDavid S. Miller <davem@davemloft.net>2016-04-24 14:31:58 -0400
commitc10c63ea739bce3b8a6ab85c7bb472d900c9b070 (patch)
treec1f411eb17d17a7790d7883f57d160b68521892c /drivers/net/macsec.c
parent72f2a05b8f367ee0d75584a6fbec7dbe7c144f27 (diff)
downloadlinux-c10c63ea739bce3b8a6ab85c7bb472d900c9b070.tar.bz2
macsec: take rtnl lock before for_each_netdev
Fixes: c09440f7dcb3 ("macsec: introduce IEEE 802.1AE driver") Reported-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: Sabrina Dubroca <sd@queasysnail.net> Acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/macsec.c')
-rw-r--r--drivers/net/macsec.c7
1 files changed, 2 insertions, 5 deletions
diff --git a/drivers/net/macsec.c b/drivers/net/macsec.c
index f691030ee3df..5f3ea8026074 100644
--- a/drivers/net/macsec.c
+++ b/drivers/net/macsec.c
@@ -2268,8 +2268,6 @@ static int dump_secy(struct macsec_secy *secy, struct net_device *dev,
if (!hdr)
return -EMSGSIZE;
- rtnl_lock();
-
if (nla_put_u32(skb, MACSEC_ATTR_IFINDEX, dev->ifindex))
goto nla_put_failure;
@@ -2429,14 +2427,11 @@ static int dump_secy(struct macsec_secy *secy, struct net_device *dev,
nla_nest_end(skb, rxsc_list);
- rtnl_unlock();
-
genlmsg_end(skb, hdr);
return 0;
nla_put_failure:
- rtnl_unlock();
genlmsg_cancel(skb, hdr);
return -EMSGSIZE;
}
@@ -2450,6 +2445,7 @@ static int macsec_dump_txsc(struct sk_buff *skb, struct netlink_callback *cb)
dev_idx = cb->args[0];
d = 0;
+ rtnl_lock();
for_each_netdev(net, dev) {
struct macsec_secy *secy;
@@ -2467,6 +2463,7 @@ next:
}
done:
+ rtnl_unlock();
cb->args[0] = d;
return skb->len;
}