From: Miaoqian Lin Date: Thu, 26 May 2022 14:52:08 +0000 (+0400) Subject: net: dsa: mv88e6xxx: Fix refcount leak in mv88e6xxx_mdios_register X-Git-Tag: v5.10.122~122 X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=42658e47f1abbbe592007d3ba303de466114d0bb;p=users%2Fdwmw2%2Flinux.git net: dsa: mv88e6xxx: Fix refcount leak in mv88e6xxx_mdios_register [ Upstream commit 02ded5a173619b11728b8bf75a3fd995a2c1ff28 ] of_get_child_by_name() returns a node pointer with refcount incremented, we should use of_node_put() on it when done. mv88e6xxx_mdio_register() pass the device node to of_mdiobus_register(). We don't need the device node after it. Add missing of_node_put() to avoid refcount leak. Fixes: a3c53be55c95 ("net: dsa: mv88e6xxx: Support multiple MDIO busses") Signed-off-by: Miaoqian Lin Reviewed-by: Marek Behún Signed-off-by: David S. Miller Signed-off-by: Sasha Levin --- diff --git a/drivers/net/dsa/mv88e6xxx/chip.c b/drivers/net/dsa/mv88e6xxx/chip.c index e79a808375fc8..7b7a8a74405df 100644 --- a/drivers/net/dsa/mv88e6xxx/chip.c +++ b/drivers/net/dsa/mv88e6xxx/chip.c @@ -3148,6 +3148,7 @@ static int mv88e6xxx_mdios_register(struct mv88e6xxx_chip *chip, */ child = of_get_child_by_name(np, "mdio"); err = mv88e6xxx_mdio_register(chip, child, false); + of_node_put(child); if (err) return err;