diff options
| -rw-r--r-- | net/hsr/hsr_netlink.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/net/hsr/hsr_netlink.c b/net/hsr/hsr_netlink.c index fbdf53f1d87..a2c7e4c0ac1 100644 --- a/net/hsr/hsr_netlink.c +++ b/net/hsr/hsr_netlink.c @@ -37,13 +37,17 @@ static int hsr_newlink(struct net *src_net, struct net_device *dev, struct net_device *link[2]; unsigned char multicast_spec; + if (!data) { + netdev_info(dev, "HSR: No slave devices specified\n"); + return -EINVAL; + } if (!data[IFLA_HSR_SLAVE1]) { - netdev_info(dev, "IFLA_HSR_SLAVE1 missing!\n"); + netdev_info(dev, "HSR: Slave1 device not specified\n"); return -EINVAL; } link[0] = __dev_get_by_index(src_net, nla_get_u32(data[IFLA_HSR_SLAVE1])); if (!data[IFLA_HSR_SLAVE2]) { - netdev_info(dev, "IFLA_HSR_SLAVE2 missing!\n"); + netdev_info(dev, "HSR: Slave2 device not specified\n"); return -EINVAL; } link[1] = __dev_get_by_index(src_net, nla_get_u32(data[IFLA_HSR_SLAVE2])); |