Use kobj_to_dev() instead of container_of()
Signed-off-by: Tian Tao <tiantao6@hisilicon.com>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/1597799671-11530-1-git-send-email-tiantao6@hisilicon.com