ACPI: EC: Fix oops when removing custom query handlers
[ Upstream commit e5b492c6bb900fcf9722e05f4a10924410e170c1 ] When removing custom query handlers, the handler might still be used inside the EC query workqueue, causing a kernel oops if the module holding the callback function was already unloaded. Fix this by flushing the EC query workqueue when removing custom query handlers. Tested on a Acer Travelmate 4002WLMi Signed-off-by:Armin Wolf <W_Armin@gmx.de> Signed-off-by:
Rafael J. Wysocki <rafael.j.wysocki@intel.com> Signed-off-by:
Sasha Levin <sashal@kernel.org>
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