linux-kernel - Re: [PATCH 4.19 228/264] PM: hibernate: remove the bogus call to get_gendisk() in software

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Date:   Wed, 28 Oct 2020 08:12:37 +0100
From:   Christoph Hellwig <hch@....de>
To:     Pavel Machek <pavel@...x.de>
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        linux-kernel@...r.kernel.org, stable@...r.kernel.org,
        Christoph Hellwig <hch@....de>,
        "Rafael J. Wysocki" <rafael.j.wysocki@...el.com>,
        Sasha Levin <sashal@...nel.org>
Subject: Re: [PATCH 4.19 228/264] PM: hibernate: remove the bogus call to
 get_gendisk() in software_resume()

On Wed, Oct 28, 2020 at 08:10:57AM +0100, Pavel Machek wrote:
> This does not fix anything in 4.19, and should not be there.
> 
> It will break resume for people using resumewait option and using
> numeric values, as original changelog explains. Eventually, someone
> will cry regression and we'll have to fix it in the mainline, but no
> need to bring this to -stable, too.

If this code ever gets hit this patch fixes a reference count leak.