From: Haishuang Yan <yanhaishu...@cmss.chinamobile.com>
Date: Sat, 16 Dec 2017 10:48:39 +0800
> If md is NULL, tun_dst must be freed, otherwise it will cause memory
> leak.
>
> Fixes: ef7baf5e083c ("ip6_gre: add ip6 erspan collect_md mode")
> Cc: William Tu <u9012...@gmail.com>
> Signed-off-by: Haishuang Yan <yanhaishu...@cmss.chinamobile.com>
>
> Change since v2:
> * Rebase on latest master branch.
> * Correct wrong fix information.
Likewise, please place the tags at the end of the commit message.
