mfd: max77620: Fix refcount leak in max77620_initialise_fps
of_get_child_by_name() returns a node pointer with refcount incremented, we should use of_node_put() on it when not need anymore. Add missing of_node_put() to avoid refcount leak. Fixes: 327156c5 ("mfd: max77620: Add core driver for MAX77620/MAX20024") Signed-off-by: Miaoqian Lin <linmq006@gmail.com> Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Signed-off-by: Lee Jones <lee.jones@linaro.org> Link: https://lore.kernel.org/r/20220601043222.64441-1-linmq006@gmail.com
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