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Date: Wed, 18 Oct 2017 08:19:52 +0200
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: Jeffy Chen <jeffy.chen@rock-chips.com>
Cc: linux-kernel@vger.kernel.org, dmitry.torokhov@gmail.com,
        heiko@sntech.de, briannorris@chromium.org, rjw@rjwysocki.net,
        dianders@chromium.org, tfiga@chromium.org, broonie@kernel.org,
        seanpaul@chromium.org, thierry.reding@gmail.com
Subject: Re: [PATCH] driver core: Make sure device detached from driver
 before deleting it
Message-ID: <20171018061952.GA18857@kroah.com>
References: <20171018054926.4756-1-jeffy.chen@rock-chips.com>
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On Wed, Oct 18, 2017 at 01:49:26PM +0800, Jeffy Chen wrote:
> There are cases we call device_del() without detaching it from the
> driver(e.g. spi core del children devices).

Why would you do that?  Shouldn't that be fixed instead of this odd
work-around for a broken bus?

thanks,

greg k-h