Ohad Ben-Cohen 0f9c37b388 rpmsg: make sure inflight messages don't invoke just-removed callbacks ... commit 15fd943af5 upstream. When inbound messages arrive, rpmsg core looks up their associated endpoint (by destination address) and then invokes their callback. We've made sure that endpoints will never be de-allocated after they were found by rpmsg core, but we also need to protect against the (rare) scenario where the rpmsg driver was just removed, and its callback function isn't available anymore. This is achieved by introducing a callback mutex, which must be taken before the callback is invoked, and, obviously, before it is removed. Reported-by: Fernando Guzman Lugo <fernando.lugo@ti.com> Signed-off-by: Ohad Ben-Cohen <ohad@wizery.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2012-07-16 09:03:52 -07:00
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Kconfig	rpmsg: depend on EXPERIMENTAL	2012-02-22 18:28:43 +02:00
Makefile
virtio_rpmsg_bus.c	rpmsg: make sure inflight messages don't invoke just-removed callbacks	2012-07-16 09:03:52 -07:00