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Message-ID: <87il7fq1al.ffs@tglx>
Date:   Mon, 09 Oct 2023 17:10:42 +0200
From:   Thomas Gleixner <tglx@...utronix.de>
To:     Biju Das <biju.das.jz@...renesas.com>,
        Alessandro Zummo <a.zummo@...ertech.it>,
        Alexandre Belloni <alexandre.belloni@...tlin.com>
Cc:     Biju Das <biju.das.jz@...renesas.com>,
        John Stultz <jstultz@...gle.com>,
        Stephen Boyd <sboyd@...nel.org>,
        Douglas Anderson <dianders@...omium.org>,
        Geert Uytterhoeven <geert+renesas@...der.be>,
        Biju Das <biju.das.au@...il.com>, linux-rtc@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-renesas-soc@...r.kernel.org
Subject: Re: [PATCH v2] alarmtimer: Fix rebind failure

On Fri, Sep 22 2023 at 09:12, Biju Das wrote:
> +static void alarmtimer_rtc_remove_device(struct device *dev)
> +{
> +	struct rtc_device *rtc = to_rtc_device(dev);
> +
> +	if (rtcdev == rtc) {
> +		module_put(rtc->owner);
> +		if (device_may_wakeup(rtc->dev.parent))
> +			device_init_wakeup(&alarmtimer_pdev->dev, false);
> +
> +		platform_device_unregister(alarmtimer_pdev);
> +		put_device(dev);
> +		alarmtimer_pdev = NULL;
> +		rtcdev = NULL;
> +	}

That's broken versus alarmtimer_get_rtcdev() and any user of it.

Thanks,

        tglx




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