linux-kernel - Re: [PATCH] scsi: avoid use of reclaimed reference

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Message-ID: <1384307830.2248.17.camel@dabdike>
Date:	Tue, 12 Nov 2013 17:57:10 -0800
From:	James Bottomley <James.Bottomley@...senPartnership.com>
To:	David Decotigny <decot@...glers.com>
Cc:	linux-scsi@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] scsi: avoid use of reclaimed reference

On Tue, 2013-11-12 at 17:10 -0800, David Decotigny wrote:
> This patch avoids to use an object after it was potentially reclaimed
> by scsi_device_put().

The analysis is wrong, I'm afraid.  __scsi_remove_device() does the
final put for devices that are being destroyed.  If the device isn't in
the created state, then it's long lived and nothing in the report lun
scan does the final put.

James


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