linux-kernel - Re: [rtc-linux] [PATCH 3/4] RTC: properly manage lifetime of dev and cdev in rtc device

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Message-ID: <CAJKOXPdt1fJTQuuyxDj5K3OK=S=3nAXtg4o9nXzY1ZCBYj0X1w@mail.gmail.com>
Date:	Tue, 21 Jul 2015 09:54:09 +0900
From:	Krzysztof Kozlowski <k.kozlowski@...sung.com>
To:	rtc-linux@...glegroups.com
Cc:	Alessandro Zummo <a.zummo@...ertech.it>,
	Alexandre Belloni <alexandre.belloni@...e-electrons.com>,
	linux-kernel@...r.kernel.org
Subject: Re: [rtc-linux] [PATCH 3/4] RTC: properly manage lifetime of dev and
 cdev in rtc device

2015-07-21 8:02 GMT+09:00 Dmitry Torokhov <dmitry.torokhov@...il.com>:
> struct rtc embeds both struct dev and struct cdev.  Unfortunately character
> device structure may outlive the parent rtc structure unless we set it up
> as parent of character device so that it will stay pinned until character
> device is freed.
>
> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@...il.com>
> ---
>  drivers/rtc/rtc-dev.c | 1 +
>  1 file changed, 1 insertion(+)

Reviewed-by: Krzysztof Kozlowski <k.kozlowski@...sung.com>

Best regards,
Krzysztof
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