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(parent: 215c461) | patch
ip6_vti: Return an error when adding an existing tunnel.
authorSteffen Klassert <steffen.klassert@secunet.com>
Mon, 22 Sep 2014 08:07:25 +0000 (10:07 +0200)
committerDavid S. Miller <davem@davemloft.net>
Sun, 28 Sep 2014 20:19:46 +0000 (16:19 -0400)
commit61e85cbcb9578f001b23645fdc79d329fa4a91d1
treebd1c67a308488c25dfb2c407d4cf0aa1760ffdbdtree | snapshot
parent215c4610a8b168b5c223151f75ab1b9a5a35b016commit | diff
ip6_vti: Return an error when adding an existing tunnel.

vti6_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_vti.c diff | blob | history
Linux Kernel Source Tree.