diff options
| -rw-r--r-- | net/core/netpoll.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/net/core/netpoll.c b/net/core/netpoll.c index 2d7d6d473781..42ea4b0e59f1 100644 --- a/net/core/netpoll.c +++ b/net/core/netpoll.c @@ -792,6 +792,12 @@ int netpoll_setup(struct netpoll *np) return -ENODEV; } + if (ndev->master) { + printk(KERN_ERR "%s: %s is a slave device, aborting.\n", + np->name, np->dev_name); + return -EBUSY; + } + if (!netif_running(ndev)) { unsigned long atmost, atleast; |