If mdiobus_get_phy() is called with an invalid addr parameter, then the
caller has a bug. Print a call trace to help identifying the caller.
Suggested-by: NPaolo Abeni <pabeni@redhat.com>
Signed-off-by: NHeiner Kallweit <hkallweit1@gmail.com>
Reviewed-by: NAndrew Lunn <andrew@lunn.ch>
Link: https://lore.kernel.org/r/daec3f08-6192-ba79-f74b-5beb436cab6c@gmail.comSigned-off-by: NJakub Kicinski <kuba@kernel.org>