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[ Upstream commitb7a4f80bc3] When of_property_read_u32_array() returns an error code, a pairing refcount decrement is needed to keep np's refcount balanced. Fixes:f705806c9f("backlight: Add support Skyworks SKY81452 backlight driver") Signed-off-by: Dinghao Liu <dinghao.liu@zju.edu.cn> Reviewed-by: Daniel Thompson <daniel.thompson@linaro.org> Signed-off-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Sasha Levin <sashal@kernel.org>