net: phylink: move phy_device_free() to correctly release phy device
authorClément Léger <clement.leger@bootlin.com>
Tue, 31 Jan 2023 10:02:42 +0000 (11:02 +0100)
committerDavid S. Miller <davem@davemloft.net>
Fri, 3 Feb 2023 09:13:53 +0000 (09:13 +0000)
After calling fwnode_phy_find_device(), the phy device refcount is
incremented. Then, when the phy device is attached to a netdev with
phy_attach_direct(), the refcount is also incremented but only
decremented in the caller if phy_attach_direct() fails. Move
phy_device_free() before the "if" to always release it correctly.
Indeed, either phy_attach_direct() failed and we don't want to keep a
reference to the phydev or it succeeded and a reference has been taken
internally.

Fixes: 25396f680dd6 ("net: phylink: introduce phylink_fwnode_phy_connect()")
Signed-off-by: Clément Léger <clement.leger@bootlin.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
drivers/net/phy/phylink.c

index 09cc65c0da9304a18955f04fc46be281f425c90b..4d2519cdb8012687713e54653119e128f92212aa 100644 (file)
@@ -1812,10 +1812,9 @@ int phylink_fwnode_phy_connect(struct phylink *pl,
 
        ret = phy_attach_direct(pl->netdev, phy_dev, flags,
                                pl->link_interface);
-       if (ret) {
-               phy_device_free(phy_dev);
+       phy_device_free(phy_dev);
+       if (ret)
                return ret;
-       }
 
        ret = phylink_bringup_phy(pl, phy_dev, pl->link_config.interface);
        if (ret)