diff options
| -rw-r--r-- | drivers/net/ethernet/qualcomm/rmnet/rmnet_config.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/net/ethernet/qualcomm/rmnet/rmnet_config.c b/drivers/net/ethernet/qualcomm/rmnet/rmnet_config.c index 5f4e447c5dce..b8bbee645f51 100644 --- a/drivers/net/ethernet/qualcomm/rmnet/rmnet_config.c +++ b/drivers/net/ethernet/qualcomm/rmnet/rmnet_config.c @@ -301,10 +301,13 @@ static int rmnet_changelink(struct net_device *dev, struct nlattr *tb[], struct rmnet_port *port; u16 mux_id; + if (!dev) + return -ENODEV; + real_dev = __dev_get_by_index(dev_net(dev), nla_get_u32(tb[IFLA_LINK])); - if (!real_dev || !dev || !rmnet_is_real_dev_registered(real_dev)) + if (!real_dev || !rmnet_is_real_dev_registered(real_dev)) return -ENODEV; port = rmnet_get_port_rtnl(real_dev); |