[ Upstream commit 922c60e89d ]
If an error is encountered in mdio_mux_init(), the error path will call
mdiobus_free(). Since mdiobus_register() has been called prior to
mdio_mux_init(), the bus->state will not be MDIOBUS_UNREGISTERED. This
causes a BUG_ON() in mdiobus_free(). To correct this issue, add an
error path for mdio_mux_init() which calls mdiobus_unregister() prior to
mdiobus_free().
Signed-off-by: Jon Mason <jon.mason@broadcom.com>
Fixes: 98bc865a1e ("net: mdio-mux: Add MDIO mux driver for iProc SoCs")
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Jon Mason
265d382cc8