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authorRussell King <rmk+kernel@armlinux.org.uk>2020-01-03 15:13:56 +0000
committerDavid S. Miller <davem@davemloft.net>2020-01-03 12:37:55 -0800
commiteed70fd9452fe0fcd1a221731a4333b51a8081f2 (patch)
tree3a575aaaef80981a86ca7f9b6b609bda1a791e26 /drivers/net/phy/phylink.c
parentdoc/net: Update git https URLs in netdev-FAQ documentation (diff)
downloadlinux-dev-eed70fd9452fe0fcd1a221731a4333b51a8081f2.tar.xz
linux-dev-eed70fd9452fe0fcd1a221731a4333b51a8081f2.zip
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 <rong.a.chen@intel.com> Fixes: 2203cbf2c8b5 ("net: sfp: move fwnode parsing into sfp-bus layer") Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/phy/phylink.c')
-rw-r--r--drivers/net/phy/phylink.c3
1 files changed, 3 insertions, 0 deletions
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);