linux-kernel - Re: [PATCH V5] scsi: ufshcd: Fix device links when BOOT WLUN fails to probe

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Message-ID: <yq1pmumvvce.fsf@ca-mkp.ca.oracle.com>
Date:   Mon, 09 Aug 2021 23:21:00 -0400
From:   "Martin K. Petersen" <martin.petersen@...cle.com>
To:     Adrian Hunter <adrian.hunter@...el.com>
Cc:     "Martin K. Petersen" <martin.petersen@...cle.com>,
        Bart Van Assche <bvanassche@....org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Saravana Kannan <saravanak@...gle.com>,
        "James E . J . Bottomley" <jejb@...ux.ibm.com>,
        linux-scsi@...r.kernel.org, Avri Altman <avri.altman@....com>,
        Bean Huo <huobean@...il.com>, Can Guo <cang@...eaurora.org>,
        Asutosh Das <asutoshd@...eaurora.org>,
        linux-pm@...r.kernel.org, linux-kernel@...r.kernel.org,
        "Rafael J . Wysocki" <rafael@...nel.org>
Subject: Re: [PATCH V5] scsi: ufshcd: Fix device links when BOOT WLUN fails
 to probe


Adrian,

> Managed device links are deleted by device_del(). However it is
> possible to add a device link to a consumer before device_add(), and
> then discovering an error prevents the device from being used. In that
> case normally references to the device would be dropped and the device
> would be deleted.  However the device link holds a reference to the
> device, so the device link and device remain indefinitely (unless the
> supplier is deleted).

Applied to 5.15/scsi-staging, thanks!

-- 
Martin K. Petersen	Oracle Linux Engineering