This is a note to let you know that I've just added the patch titled
net: phylink: move phy_device_free() to correctly release phy device
to the 5.15-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
net-phylink-move-phy_device_free-to-correctly-releas.patch
and it can be found in the queue-5.15 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 69f63675d09ca87bec6df91941dc08ea44ee8212
Author: Clément Léger <clement.leger@xxxxxxxxxxx>
Date: Tue Jan 31 11:02:42 2023 +0100
net: phylink: move phy_device_free() to correctly release phy device
[ Upstream commit ce93fdb5f2ca5c9e2a9668411cc39091507f8dc9 ]
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@xxxxxxxxxxx>
Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/net/phy/phylink.c b/drivers/net/phy/phylink.c
index 7afcf6310d59f..422dc92ecac94 100644
--- a/drivers/net/phy/phylink.c
+++ b/drivers/net/phy/phylink.c
@@ -1166,10 +1166,9 @@ 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)
