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:
98bc865a1ec8 ("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>
&md->mux_handle, md, md->mii_bus);
if (rc) {
dev_info(md->dev, "mdiomux initialization failed\n");
- goto out;
+ goto out_register;
}
dev_info(md->dev, "iProc mdiomux registered\n");
return 0;
+
+out_register:
+ mdiobus_unregister(bus);
out:
mdiobus_free(bus);
return rc;