[ Upstream commit dcb77e4b274b8f13ac6482dfb09160cd2fae9a40 ] The driver misses calling destroy_workqueue in remove like what is done when probe fails. Add the missed calls to fix it. Signed-off-by: Chuhong Yuan <hslester96@gmail.com> Signed-off-by: Jens Axboe <axboe@kernel.dk> Signed-off-by: Sasha Levin <sashal@kernel.org>