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(parent: 0b8cbea) | 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)
commit8d81dbce9adb6ac86bf4c60a20d7952ec4161e76
treebc590a02ea4c79082993e0d026d9a6d60b894345tree | snapshot
parent0b8cbea92bd82aeaa5d8ce1e053244fbe03173ebcommit | 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.