diff options
| -rw-r--r-- | net/core/sock.c | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/net/core/sock.c b/net/core/sock.c index 5a51512..38820ea 100644 --- a/net/core/sock.c +++ b/net/core/sock.c @@ -420,14 +420,16 @@ static int sock_bindtodevice(struct sock *sk, char __user *optval, int optlen) if (devname[0] == '\0') { index = 0; } else { - struct net_device *dev = dev_get_by_name(net, devname); + struct net_device *dev; + rcu_read_lock(); + dev = dev_get_by_name_rcu(net, devname); + if (dev) + index = dev->ifindex; + rcu_read_unlock(); ret = -ENODEV; if (!dev) goto out; - - index = dev->ifindex; - dev_put(dev); } lock_sock(sk); |