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(parent: 2b0bb01) | 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)
commitd814b847be7b47575a1cc2194760d3461e1c43c8
treebd1c67a308488c25dfb2c407d4cf0aa1760ffdbdtree | snapshot
parent2b0bb01b6edb3e13c7f71e43bf3a173a795b7b66commit | 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
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