linux-kernel - Re: [PATCH] drbd: fix NULL pointer deref in blk_add_request

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Message-ID: <53AAF128.1030800@kernel.dk>
Date:	Wed, 25 Jun 2014 09:56:24 -0600
From:	Jens Axboe <axboe@...nel.dk>
To:	Philipp Reisner <philipp.reisner@...bit.com>,
	linux-kernel@...r.kernel.org
CC:	drbd-dev@...ts.linbit.com
Subject: Re: [PATCH] drbd: fix NULL pointer deref in blk_add_request_payload

On 06/25/2014 09:52 AM, Philipp Reisner wrote:
> From: Lars Ellenberg <lars.ellenberg@...bit.com>
> 
> Discards don't have any payload.
> But the scsi layer still expects a bio_vec it can use internally,
> see sd_setup_discard_cmnd() and blk_add_request_payload().
> 
> Signed-off-by: Philipp Reisner <philipp.reisner@...bit.com>
> Signed-off-by: Lars Ellenberg <lars.ellenberg@...bit.com>

Applied, thanks.

-- 
Jens Axboe

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