From: Pavel Machek <pavel@ucw.cz>
To: Johan Hovold <johan@kernel.org>
Cc: "Rafael J. Wysocki" <rjw@rjwysocki.net>,
Len Brown <len.brown@intel.com>,
linux-pm@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] PM / sleep: fix device reference leak in test_suspend
Date: Wed, 2 Nov 2016 09:52:30 +0100 [thread overview]
Message-ID: <20161102085230.GB23350@amd> (raw)
In-Reply-To: <1477997396-29476-1-git-send-email-johan@kernel.org>
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On Tue 2016-11-01 11:49:56, Johan Hovold wrote:
> Make sure to drop the reference taken by class_find_device() after
> opening the rtc device.
>
> Fixes: 77437fd4e61f ("pm: boot time suspend selftest")
> Signed-off-by: Johan Hovold <johan@kernel.org>
Acked-by: Pavel Machek <pavel@ucw.cz>
> ---
> kernel/power/suspend_test.c | 4 +++-
> 1 file changed, 3 insertions(+), 1 deletion(-)
>
> diff --git a/kernel/power/suspend_test.c b/kernel/power/suspend_test.c
> index 084452e34a12..bdff5ed57f10 100644
> --- a/kernel/power/suspend_test.c
> +++ b/kernel/power/suspend_test.c
> @@ -203,8 +203,10 @@ static int __init test_suspend(void)
>
> /* RTCs have initialized by now too ... can we use one? */
> dev = class_find_device(rtc_class, NULL, NULL, has_wakealarm);
> - if (dev)
> + if (dev) {
> rtc = rtc_class_open(dev_name(dev));
> + put_device(dev);
> + }
> if (!rtc) {
> printk(warn_no_rtc);
> return 0;
--
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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prev parent reply other threads:[~2016-11-02 8:52 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-11-01 10:49 [PATCH] PM / sleep: fix device reference leak in test_suspend Johan Hovold
2016-11-02 8:52 ` Pavel Machek [this message]
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