Messages in this thread | | | Date | Sun, 1 Dec 2013 14:37:30 -0800 | From | Anton Vorontsov <> | Subject | Re: [PATCH v2 2/3] bq2415x_charger: Use power_supply notifier for automode |
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On Mon, Nov 25, 2013 at 08:16:34PM +0100, Michael Trimarchi wrote: ... > >> So you can read this value without any type of synchronization > >> with the power_supply_core > >> and sysfs implementation? ... > https://lists.ubuntu.com/archives/kernel-team/2013-January/025206.html > > I found and equivalent scenario that I was trying to said
That's a good question, actually. Even though in Pali's case the notifier is atomic (so that we are pretty confident that the object won't be unregistered), there is still a possiblity of a dead lock, for example. So notifiers should be careful to not hold any locks, because the other driver might call get_property(), which might acquire locks.
Thanks,
Anton
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