From eed70fd9452fe0fcd1a221731a4333b51a8081f2 Mon Sep 17 00:00:00 2001 From: Russell King Date: Fri, 3 Jan 2020 15:13:56 +0000 Subject: net: phylink: fix failure to register on x86 systems The kernel test robot reports a boot failure with qemu in 5.5-rc, referencing commit 2203cbf2c8b5 ("net: sfp: move fwnode parsing into sfp-bus layer"). This is caused by phylink_create() being passed a NULL fwnode, causing fwnode_property_get_reference_args() to return -EINVAL. Don't attempt to attach to a SFP bus if we have no fwnode, which avoids this issue. Reported-by: kernel test robot Fixes: 2203cbf2c8b5 ("net: sfp: move fwnode parsing into sfp-bus layer") Signed-off-by: Russell King Reviewed-by: Florian Fainelli Reviewed-by: Andrew Lunn Signed-off-by: David S. Miller --- drivers/net/phy/phylink.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/net/phy/phylink.c b/drivers/net/phy/phylink.c index 1585eebb73fe..ee7a718662c6 100644 --- a/drivers/net/phy/phylink.c +++ b/drivers/net/phy/phylink.c @@ -566,6 +566,9 @@ static int phylink_register_sfp(struct phylink *pl, struct sfp_bus *bus; int ret; + if (!fwnode) + return 0; + bus = sfp_bus_find_fwnode(fwnode); if (IS_ERR(bus)) { ret = PTR_ERR(bus); -- cgit v1.2.3