ip6_gre: Return an error when adding an existing tunnel.

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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>

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Steffen Klassert 2014-09-22 10:07:26 +02:00 • committed by David S. Miller

parent d814b847be

commit cd0a0bd9b8

1 changed files with 2 additions and 0 deletions

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net/ipv6/ip6_gre.c

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