netdev - Re: [PATCH net] sctp: only drop the reference on the datamsg after sending a msg

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Date:	Sun, 06 Dec 2015 13:26:03 -0500 (EST)
From:	David Miller <davem@...emloft.net>
To:	lucien.xin@...il.com
Cc:	netdev@...r.kernel.org, linux-sctp@...r.kernel.org,
	marcelo.leitner@...il.com, vyasevic@...hat.com
Subject: Re: [PATCH net] sctp: only drop the reference on the datamsg after
 sending a msg

From: Xin Long <lucien.xin@...il.com>
Date: Sat,  5 Dec 2015 15:19:27 +0800

> If the chunks are enqueued successfully but sctp_cmd_interpreter()
> return err to sctp_sendmsg() (mainly because of no mem), the chunks will
> get re-queued, but we are dropping the reference and freeing them.
> 
> The fix is to just drop the reference on the datamsg just as it had
> succeeded, as:
>  - if the chunks weren't queued, this is enough to get them freed.
>  - if they were queued, they will get freed when they finally get out or
>  discarded.
> 
> Signed-off-by: Xin Long <lucien.xin@...il.com>

Applied.
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