linux-kernel - Re: [PATCH v5 4/8] drivers: thermal: tsens: Release device in success path

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Message-ID: <CAP245DVWWN8Au4pb74rewcQ+tWR5GDdVjSCssuSf-VvQnvtnXg@mail.gmail.com>
Date:   Mon, 24 Feb 2020 14:52:21 +0530
From:   Amit Kucheria <amit.kucheria@...aro.org>
To:     Stephen Boyd <swboyd@...omium.org>
Cc:     Andy Gross <agross@...nel.org>,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        Daniel Lezcano <daniel.lezcano@...aro.org>,
        linux-arm-msm <linux-arm-msm@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        sivaa@...eaurora.org, Amit Kucheria <amit.kucheria@...durent.com>,
        Linux PM list <linux-pm@...r.kernel.org>
Subject: Re: [PATCH v5 4/8] drivers: thermal: tsens: Release device in success path

On Thu, Feb 20, 2020 at 4:25 AM Stephen Boyd <swboyd@...omium.org> wrote:
>
> Quoting Amit Kucheria (2020-02-18 10:12:08)
> > We don't currently call put_device in case of successfully initialising
> > the device.
>
> Sure, but why is that a problem? Presumably the device is kept pinned
> forever?

Right, we keep the reference forever. Will fix the commit message.
>
> >
> > Allow control to fall through so we can use same code for success and
> > error paths to put_device.
> >
> > As a part of this fixup, change devm_ioremap_resource to act on the same
> > device pointer as that used to allocate regmap memory. That ensures that
> > we are free to release op->dev after examining its resources.
> >
> > Signed-off-by: Amit Kucheria <amit.kucheria@...aro.org>
> > Reviewed-by: Bjorn Andersson <bjorn.andersson@...aro.org>