linux-kernel - Re: [PATCH 3/3] serial: crisv10: fix invalid user-pointer check

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Message-ID: <20161108125150.GY30704@axis.com>
Date:   Tue, 8 Nov 2016 13:51:50 +0100
From:   Jesper Nilsson <jesper.nilsson@...s.com>
To:     Johan Hovold <johan@...nel.org>
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Jiri Slaby <jslaby@...e.com>, linux-serial@...r.kernel.org,
        linux-kernel@...r.kernel.org, Mikael Starvik <starvik@...s.com>,
        Jesper Nilsson <jespern@...s.com>, linux-cris-kernel@...s.com
Subject: Re: [PATCH 3/3] serial: crisv10: fix invalid user-pointer check

On Tue, Nov 08, 2016 at 01:24:55PM +0100, Johan Hovold wrote:
> Drop invalid user-pointer check from TIOCGSERIAL handler.
> 
> A NULL-pointer can be valid in user space and copy_to_user() takes care
> of sanity checking.
> 
> Cc: Mikael Starvik <starvik@...s.com>

Acked-by: Jesper Nilsson <jesper.nilsson@...s.com>

> Cc: linux-cris-kernel@...s.com
> Signed-off-by: Johan Hovold <johan@...nel.org>

/^JN - Jesper Nilsson
-- 
               Jesper Nilsson -- jesper.nilsson@...s.com