linux-kernel - Re: [PATCH][RESEND 2] component: enhance handling of devres group for master

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Message-ID: <20180726082621.GW17271@n2100.armlinux.org.uk>
Date:   Thu, 26 Jul 2018 09:26:21 +0100
From:   Russell King - ARM Linux <linux@...linux.org.uk>
To:     bgoswami@...eaurora.org
Cc:     gregkh@...uxfoundation.org, linux-kernel@...r.kernel.org,
        linux-arm-msm@...r.kernel.org, srinivas.kandagatla@...aro.org
Subject: Re: [PATCH][RESEND 2] component: enhance handling of devres group
 for master

On Wed, Jul 25, 2018 at 11:06:28PM -0700, bgoswami@...eaurora.org wrote:
> From: Banajit Goswami <bgoswami@...eaurora.org>
> 
> The devres group opened for a master is left open-ended (without
> devres_group_close) even after bind() is complete. Similarly, while
> releasing the devres resources for master, the most recently opened
> devres group is selected, and released without identifying the
> targeted group. As the devres group opened before master bind was
> never closed, there may have unintended consequences of releasing
> devres resources that were allocated after master bind() function
> was complete.

... as intended, because this layers on top of the driver model.
You are aware that the driver model leaves its implicit group open
as well?

I think you need to explain why you need this - what is the problem
scenario that you are encountering.

-- 
RMK's Patch system: http://www.armlinux.org.uk/developer/patches/
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