linux-kernel - Re: [PATCH] ide-tape: Avoid potential null pointer dereference in idetape_abort

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Message-ID: <9a8748490803141813i32b5a411n3882ec0dac18891d@mail.gmail.com>
Date:	Sat, 15 Mar 2008 02:13:29 +0100
From:	"Jesper Juhl" <jesper.juhl@...il.com>
To:	"Johannes Weiner" <hannes@...urebad.de>
Cc:	"Bartlomiej Zolnierkiewicz" <bzolnier@...il.com>,
	"Gadi Oxman" <gadio@...vision.net.il>,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] ide-tape: Avoid potential null pointer dereference in idetape_abort_pipeline()

On 15/03/2008, Johannes Weiner <hannes@...urebad.de> wrote:
> Hi Jesper,
>
>
>  Jesper Juhl <jesper.juhl@...il.com> writes:
>
>  > If a NULL 'new_last_stage' is passed to idetape_abort_pipeline() then
>  > we'll dereference a NULL pointer and go *boom*.
>  > The function does test for a null pointer, unfortunately it only does it
>  > after having already dereferenced it.
>
>
> Did you hit an oops because of this?
>

No, I did not.


-- 
Jesper Juhl <jesper.juhl@...il.com>
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