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stmmac: add missing of_node_put

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The function stmmac_dt_phy provides several possibilities for initializing
plat->mdio_node, all of which have the effect of increasing the reference
count of the assigned value.  This field is not updated elsewhere, so the
value is live until the end of the lifetime of plat (devm_allocated), just
after the end of stmmac_remove_config_dt.  Thus, add an of_node_put on
plat->mdio_node in stmmac_remove_config_dt.  It is possible that the field
mdio_node is never initialized, but of_node_put is NULL-safe, so it is also
safe to call of_node_put in that case.

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Acked-by: Alexandre TORGUE <alexandre.torgue@st.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Julia Lawall 2017-01-17 12:23:21 +01:00 committed by David S. Miller
parent 501db51139
commit a249708bc2
1 changed files with 1 additions and 0 deletions
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drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c
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@ -351,6 +351,7 @@ void stmmac_remove_config_dt(struct platform_device *pdev,
if (of_phy_is_fixed_link(np))
of_phy_deregister_fixed_link(np);
of_node_put(plat->phy_node);
of_node_put(plat->mdio_node);
}
#else
struct plat_stmmacenet_data *