[ Upstream commit8fbf94fea0
] The device_node pointer returned by of_find_matching_node() with refcount incremented, when finish using it, the refcount need be decreased. Fixes:a967a289f1
("RISC-V: sifive_l2_cache: Add L2 cache controller driver for SiFive SoCs") Signed-off-by: Yang Yingliang <yangyingliang@huawei.com> Reviewed-by: Conor Dooley <conor.dooley@microchip.com> Signed-off-by: Conor Dooley <conor.dooley@microchip.com> Signed-off-by: Sasha Levin <sashal@kernel.org>