[PATCH 3.18 118/121] ip6_tunnel: better validate user provided tunnel names

3.18-stable review patch. If anyone has any objections, please let me know. -- From: Eric Dumazet [ Upstream commit db7a65e3ab78e5b1c4b17c0870ebee35a4ee3257 ] Use valid_name() to make sure user does not provide illegal device name. Fixes: 1da177e4c3f4

[PATCH 3.18 118/121] ip6_tunnel: better validate user provided tunnel names

3.18-stable review patch. If anyone has any objections, please let me know. -- From: Eric Dumazet [ Upstream commit db7a65e3ab78e5b1c4b17c0870ebee35a4ee3257 ] Use valid_name() to make sure user does not provide illegal device name. Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")