From: Xin Long <lucien....@gmail.com>
Date: Sat, 30 Jul 2016 14:14:41 +0800
> Commit 141ddefce7c8 ("sctp: change sk state to CLOSED instead of
> CLOSING in sctp_sock_migrate") changed sk state to CLOSED if the
> assoc is closed when sctp_accept clones a new sk.
>
> If there is still data in sk receive queue, users will not be able
> to read it any more, as sctp_recvmsg returns directly if sk state
> is CLOSED.
>
> This patch is to add CLOSED state check in sctp_recvmsg to allow
> reading data from TCP-style sk with CLOSED state as what TCP does.
>
> Signed-off-by: Xin Long <lucien....@gmail.com>
Applied.
