We accidentally free "micro_ac_power" which is an error pointer and it
leads to an oops.  We intended to free "micro_batt_power".
Fixes: a2c1d531854c ('power_supply: ipaq_micro_battery: Check return values in probe')
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
        return 0;
 
 ac_err:
-       power_supply_unregister(micro_ac_power);
+       power_supply_unregister(micro_batt_power);
 batt_err:
        cancel_delayed_work_sync(&mb->update);
        destroy_workqueue(mb->wq);