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authorchas williams - CONTRACTOR <chas@cmf.nrl.navy.mil>2014-08-14 09:19:47 -0400
committerDavid S. Miller <davem@davemloft.net>2014-08-21 16:31:23 -0700
commit6df378d2d1f87a249a88ac4a8c7a14861d9c9474 (patch)
treec78ea1b78a906baba5c551912efbda9d8b9dc5ae /net/atm
parent02784f1b05b8f241c8180af88869e717e2758593 (diff)
lec: Use rtnl lock/unlock when updating MTU
The LECS response contains the MTU that should be used. Correctly synchronize with other layers when updating. Signed-off-by: Chas Williams - CONTRACTOR <chas@cmf.nrl.navy.mil> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/atm')
-rw-r--r--net/atm/lec.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/net/atm/lec.c b/net/atm/lec.c
index e4853b50cf40..4b98f897044a 100644
--- a/net/atm/lec.c
+++ b/net/atm/lec.c
@@ -410,9 +410,11 @@ static int lec_atm_send(struct atm_vcc *vcc, struct sk_buff *skb)
priv->lane2_ops = NULL;
if (priv->lane_version > 1)
priv->lane2_ops = &lane2_ops;
+ rtnl_lock();
if (dev_set_mtu(dev, mesg->content.config.mtu))
pr_info("%s: change_mtu to %d failed\n",
dev->name, mesg->content.config.mtu);
+ rtnl_unlock();
priv->is_proxy = mesg->content.config.is_proxy;
break;
case l_flush_tran_id:

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