Re: [PATCH] ch: Make it again possible to open a ch device two or more times

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Subject: Re: [PATCH] ch: Make it again possible to open a ch device two or more times
From: "Martin K. Petersen" <martin.petersen@xxxxxxxxxx>
Date: Wed, 09 Oct 2019 23:40:32 -0400
Cc: "Martin K . Petersen" <martin.petersen@xxxxxxxxxx>, "James E . J . Bottomley" <jejb@xxxxxxxxxxxxxxxxxx>, linux-scsi@xxxxxxxxxxxxxxx, Christoph Hellwig <hch@xxxxxx>, Rob Turk <robtu@xxxxxxxx>, Hannes Reinecke <hare@xxxxxxx>, stable@xxxxxxxxxxxxxxx
In-reply-to: <20191009173536.247889-1-bvanassche@acm.org> (Bart Van Assche's message of "Wed, 9 Oct 2019 10:35:36 -0700")
Organization: Oracle Corporation
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/26.1.92 (gnu/linux)

Bart,

> Clearing ch->device in ch_release() is wrong because that pointer must
> remain valid until ch_remove() is called. This patch fixes the
> following crash the second time a ch device is opened:

Applied to 5.4/scsi-fixes, thank you!

-- 
Martin K. Petersen	Oracle Linux Engineering

References:
- [PATCH] ch: Make it again possible to open a ch device two or more times
  - From: Bart Van Assche

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