diff mbox

[net,v2,2/9] macsec: take rtnl lock before for_each_netdev

Message ID 7cbdf80a0b692611d0e0303ebc5f6a7628747413.1461315621.git.sd@queasysnail.net
State Accepted, archived
Delegated to: David Miller
Headers show

Commit Message

Sabrina Dubroca April 22, 2016, 9:28 a.m. UTC 
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>
---
 drivers/net/macsec.c | 7 ++-----
 1 file changed, 2 insertions(+), 5 deletions(-)
diff mbox

Patch

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;
 }