tree e3f62f0dcd843661a7191f6a9e5e3d8421f63546
parent d148bbd37a52b030b131ac5408c0f8293325ca0b
author Mark Tomlinson <mark.tomlinson@alliedtelesis.co.nz> 1455506684 +1300
committer David S. Miller <davem@davemloft.net> 1455741287 -0500

l2tp: Fix error creating L2TP tunnels

A previous commit (33f72e6) added notification via netlink for tunnels
when created/modified/deleted. If the notification returned an error,
this error was returned from the tunnel function. If there were no
listeners, the error code ESRCH was returned, even though having no
listeners is not an error. Other calls to this and other similar
notification functions either ignore the error code, or filter ESRCH.
This patch checks for ESRCH and does not flag this as an error.

Reviewed-by: Hamish Martin <hamish.martin@alliedtelesis.co.nz>
Signed-off-by: Mark Tomlinson <mark.tomlinson@alliedtelesis.co.nz>
Signed-off-by: David S. Miller <davem@davemloft.net>