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(parent: f34d3f2) | patch
ip6_tunnel: Return an error when adding an existing tunnel.
authorSteffen Klassert <steffen.klassert@secunet.com>
Mon, 22 Sep 2014 08:07:24 +0000 (10:07 +0200)
committerDavid S. Miller <davem@davemloft.net>
Sun, 28 Sep 2014 20:19:46 +0000 (16:19 -0400)
commit215c4610a8b168b5c223151f75ab1b9a5a35b016
tree7b5aa53470eadec8abbd7ddb586ba14bc4af86e4tree | snapshot
parentf34d3f2562cf50e1d4378dd49b50f661d68ccd3acommit | diff
ip6_tunnel: Return an error when adding an existing tunnel.

ip6_tnl_locate() should not return an existing tunnel if
create is true. Otherwise it is possible to add the same
tunnel multiple times without getting an error.

So return NULL if the tunnel that should be created already
exists.

Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
net/ipv6/ip6_tunnel.c diff | blob | history
Linux Kernel Source Tree.