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(parent: 61e85cb) | patch
ip6_gre: Return an error when adding an existing tunnel.
authorSteffen Klassert <steffen.klassert@secunet.com>
Mon, 22 Sep 2014 08:07:26 +0000 (10:07 +0200)
committerDavid S. Miller <davem@davemloft.net>
Sun, 28 Sep 2014 20:19:46 +0000 (16:19 -0400)
commit57bd659e44c65bea931e366e188dd20fcef2a7f4
treebc590a02ea4c79082993e0d026d9a6d60b894345tree | snapshot
parent61e85cbcb9578f001b23645fdc79d329fa4a91d1commit | diff
ip6_gre: Return an error when adding an existing tunnel.

ip6gre_tunnel_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_gre.c diff | blob | history
Linux Kernel Source Tree.