https://github.com/torvalds/linux
Revision cd0a0bd9b8e157b19aa38eeac30c60f1a0d010bd authored by Steffen Klassert on 22 September 2014, 08:07:26 UTC, committed by David S. Miller on 28 September 2014, 20:19:46 UTC
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>
1 parent d814b84
History
Tip revision: cd0a0bd9b8e157b19aa38eeac30c60f1a0d010bd authored by Steffen Klassert on 22 September 2014, 08:07:26 UTC
ip6_gre: Return an error when adding an existing tunnel.
Tip revision: cd0a0bd
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