linux-kernel - Re: [patch] IB/rxe: fix error code in rxe_srq_from

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Message-ID: <20160613132030.GK5408@leon.nu>
Date:	Mon, 13 Jun 2016 16:20:30 +0300
From:	Leon Romanovsky <leon@...nel.org>
To:	Dan Carpenter <dan.carpenter@...cle.com>
Cc:	Moni Shoua <monis@...lanox.com>,
	Doug Ledford <dledford@...hat.com>,
	Sean Hefty <sean.hefty@...el.com>,
	Hal Rosenstock <hal.rosenstock@...il.com>,
	linux-rdma@...r.kernel.org, linux-kernel@...r.kernel.org,
	kernel-janitors@...r.kernel.org
Subject: Re: [patch] IB/rxe: fix error code in rxe_srq_from_init()

On Mon, Jun 13, 2016 at 09:53:41AM +0300, Dan Carpenter wrote:
> If copy_to_user() fails then it returns the number of bytes not copied.
> It would be between 1-4 here.  Later the callers dereference it leading
> to an Oops.
> 
> It was sort of hard to fix this without making the code confusing so I
> did a little cleanup.
> 
> Fixes: 443c15d23220 ('IB/rxe: Shared Receive Queue (SRQ) manipulation functions')
> Signed-off-by: Dan Carpenter <dan.carpenter@...cle.com>

Thanks Dan,
I applied it on topic/rxe.

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