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Commit 5bd30d39 authored by Cong Wang's avatar Cong Wang Committed by David S. Miller
Browse files

netpoll: fix a missing dev refcounting 



__dev_get_by_name() doesn't refcount the network device,
so we have to do this by ourselves. Noticed by Eric.

Cc: Eric Dumazet <eric.dumazet@gmail.com>
Cc: Jiri Pirko <jiri@resnulli.us>
Cc: David S. Miller <davem@davemloft.net>
Signed-off-by: default avatarCong Wang <amwang@redhat.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 07f623d3

net/core/netpoll.c

+1 −0
Original line number Diff line number Diff line
@@ -1056,6 +1056,7 @@ int netpoll_setup(struct netpoll *np) 
		err = -ENODEV;

		goto unlock;

	}

	dev_hold(ndev);



	if (netdev_master_upper_dev_get(ndev)) {

		np_err(np, "%s is a slave device, aborting\n", np->dev_name);