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| author | Eric Dumazet <edumazet@google.com> | 2012-06-07 00:07:20 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2012-06-07 13:02:20 -0700 |
| commit | a06998b88b1651c5f71c0e35f528bf2057188ead (patch) | |
| tree | 440f4da0f692186c728d5a1ebff7889c6844461d | |
| parent | da2e852612967a53d17de930929574444a67fb52 (diff) | |
| download | linux-a06998b88b1651c5f71c0e35f528bf2057188ead.tar.gz linux-a06998b88b1651c5f71c0e35f528bf2057188ead.tar.bz2 linux-a06998b88b1651c5f71c0e35f528bf2057188ead.zip | |
net: l2tp_eth: fix kernel panic on rmmod l2tp_eth
We must prevent module unloading if some devices are still attached to
l2tp_eth driver.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: Denys Fedoryshchenko <denys@visp.net.lb>
Tested-by: Denys Fedoryshchenko <denys@visp.net.lb>
Cc: James Chapman <jchapman@katalix.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | net/l2tp/l2tp_eth.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/net/l2tp/l2tp_eth.c b/net/l2tp/l2tp_eth.c index 443591d629ca..185f12f4a5fa 100644 --- a/net/l2tp/l2tp_eth.c +++ b/net/l2tp/l2tp_eth.c @@ -162,6 +162,7 @@ static void l2tp_eth_delete(struct l2tp_session *session) if (dev) { unregister_netdev(dev); spriv->dev = NULL; + module_put(THIS_MODULE); } } } @@ -249,6 +250,7 @@ static int l2tp_eth_create(struct net *net, u32 tunnel_id, u32 session_id, u32 p if (rc < 0) goto out_del_dev; + __module_get(THIS_MODULE); /* Must be done after register_netdev() */ strlcpy(session->ifname, dev->name, IFNAMSIZ); |