[ Upstream commite78bf6be7e] Decrements the reference count of device node and its child node. Fixes:dfe7a1b058("regulator: AXP20x: Add support for regulators subsystem") Signed-off-by: Pan Bian <bianpan2016@163.com> Link: https://lore.kernel.org/r/20210120123313.107640-1-bianpan2016@163.com Signed-off-by: Mark Brown <broonie@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>