Messages in this thread | | | Date | Sun, 15 Nov 2015 16:46:12 +0100 | From | Pavel Machek <> | Subject | Re: [PATCH v3] PM / sleep: prohibit devices probing during suspend/hibernation |
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On Tue 2015-11-10 11:42:34, Grygorii Strashko wrote: > It is unsafe [1] if probing of devices will happen during suspend or > hibernation and system behavior will be unpredictable in this case. > So, let's prohibit device's probing in dpm_prepare() and defer their > probing instead. The normal behavior will be restored in > dpm_complete(). > > This patch introduces new DD core APIs: > device_block_probing() > It will disable probing of devices and defer their probes instead. > device_unblock_probing() > It will restore normal behavior and trigger re-probing of deferred > devices. > > [1] https://lkml.org/lkml/2015/9/11/554 > Cc: Alan Stern <stern@rowland.harvard.edu> > Cc: Rafael J. Wysocki <rjw@rjwysocki.net> > Cc: Thierry Reding <thierry.reding@gmail.com> > Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Acked-by: Pavel Machek <pavel@ucw.cz>
-- (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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