On Thu, 25 Feb 2021 12:51:36 +0100, Anton Yakovlev wrote: > > > Now I'm wondering whether it's safe to do that from this place. > > Basically device_reprobe() unbinds the device that releases the full > > resources once including the devm_* stuff. And this work itself is in > > a part of devm allocated resource, so it'll be released there. That > > said, we might hit use-after-free... This needs to be verified. > > It's safe. Suicide kernel workers are funny but possible things. Since > the kernel itself (AFAIU) assumes such a situation and does not access > the worker structure after the callback function call. Indeed, process_one_work() in workqueue.c assures no access to the work object after the callback. Then this must be fine. Good to know! thanks, Takashi
