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    Subject[PATCH 5.15 063/135] net: stmmac: dwmac-sun8i: add missing of_node_put() in sun8i_dwmac_register_mdio_mux()
    Date
    From: Yang Yingliang <yangyingliang@huawei.com>

    commit 1a15267b7be77e0792cf0c7b36ca65c8eb2df0d8 upstream.

    The node pointer returned by of_get_child_by_name() with refcount incremented,
    so add of_node_put() after using it.

    Fixes: 634db83b8265 ("net: stmmac: dwmac-sun8i: Handle integrated/external MDIOs")
    Reported-by: Hulk Robot <hulkci@huawei.com>
    Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
    Link: https://lore.kernel.org/r/20220428095716.540452-1-yangyingliang@huawei.com
    Signed-off-by: Jakub Kicinski <kuba@kernel.org>
    Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
    ---
    drivers/net/ethernet/stmicro/stmmac/dwmac-sun8i.c | 1 +
    1 file changed, 1 insertion(+)

    --- a/drivers/net/ethernet/stmicro/stmmac/dwmac-sun8i.c
    +++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-sun8i.c
    @@ -916,6 +916,7 @@ static int sun8i_dwmac_register_mdio_mux

    ret = mdio_mux_init(priv->device, mdio_mux, mdio_mux_syscon_switch_fn,
    &gmac->mux_handle, priv, priv->mii);
    + of_node_put(mdio_mux);
    return ret;
    }


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