Message-ID: <50221737.3010608@acm.org>
Date: Wed, 08 Aug 2012 07:37:27 +0000
From: Bart Van Assche <bvanassche@acm.org>
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To: Chanho Min <chanho0207@gmail.com>
CC: Mike Christie <michaelc@cs.wisc.edu>,
        James Bottomley <JBottomley@parallels.com>, linux-scsi@vger.kernel.org,
        linux-kernel@vger.kernel.org, Jens Axboe <axboe@kernel.dk>,
        Tejun Heo <tj@kernel.org>
Subject: Re: [PATCH] fix NULL-pointer dereference on scsi_run_queue
References: <CAOAMb1D+g0zzKGKjMPPp7V-XEwKB5AYGMDvUUbXNaHaz8ieTVg@mail.gmail.com> <501CE4E5.20604@acm.org> <501D51D1.2010806@cs.wisc.edu> <501D83A1.7040900@acm.org> <501DA3F0.4090009@cs.wisc.edu> <50200561.4020100@acm.org> <CAOAMb1BWWzYPSode-6Y9+O5eNhMc-bYofCNwMRmzeC9-nhRb4g@mail.gmail.com> <5020E031.9080406@acm.org> <CAOAMb1BNSTaG8N68jcEDV3gNt6V7BM9HkjUuXHeebhLNHe18kA@mail.gmail.com>
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On 08/08/12 03:42, Chanho Min wrote:
> Thank you for the explanation. It look correct. Let's check one more thing.
> What If __scsi_remove_device doesn't release device? : reference count
> is more than 2.
> So We lost starved_list but device is exist. Is there any issue about this?

As far as I can see that scenario will also be handled correctly by the
proposed patch.

Bart.

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