From: Marek Behún <kabel@xxxxxxxxxx> commit 2148927e6ed43a1667baf7c2ae3e0e05a44b51a0 upstream. Commit ce0aa27ff3f6 ("sfp: add sfp-bus to bridge between network devices and sfp cages") added code which finds SFP bus DT node even if the node is disabled with status = "disabled". Because of this, when phylink is created, it ends with non-null .sfp_bus member, even though the SFP module is not probed (because the node is disabled). We need to ignore disabled SFP bus node. Fixes: ce0aa27ff3f6 ("sfp: add sfp-bus to bridge between network devices and sfp cages") Signed-off-by: Marek Behún <kabel@xxxxxxxxxx> Cc: stable@xxxxxxxxxxxxxxx # 2203cbf2c8b5 ("net: sfp: move fwnode parsing into sfp-bus layer") Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx> [ backport to 4.19 ] Signed-off-by: Marek Behún <kabel@xxxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- drivers/net/phy/phylink.c | 5 +++++ 1 file changed, 5 insertions(+) --- a/drivers/net/phy/phylink.c +++ b/drivers/net/phy/phylink.c @@ -554,6 +554,11 @@ static int phylink_register_sfp(struct p return ret; } + if (!fwnode_device_is_available(ref.fwnode)) { + fwnode_handle_put(ref.fwnode); + return 0; + } + pl->sfp_bus = sfp_register_upstream(ref.fwnode, pl->netdev, pl, &sfp_phylink_ops); if (!pl->sfp_bus)