diff options
Diffstat (limited to 'drivers/tty/vt')
| -rw-r--r-- | drivers/tty/vt/vt.c | 16 |
1 files changed, 9 insertions, 7 deletions
diff --git a/drivers/tty/vt/vt.c b/drivers/tty/vt/vt.c index ea600f482eeb..5077fe87324d 100644 --- a/drivers/tty/vt/vt.c +++ b/drivers/tty/vt/vt.c @@ -3573,17 +3573,20 @@ err: */ int do_unregister_con_driver(const struct consw *csw) { - int i, retval = -ENODEV; + int i; /* cannot unregister a bound driver */ if (con_is_bound(csw)) - goto err; + return -EBUSY; + + if (csw == conswitchp) + return -EINVAL; for (i = 0; i < MAX_NR_CON_DRIVER; i++) { struct con_driver *con_driver = ®istered_con_driver[i]; if (con_driver->con == csw && - con_driver->flag & CON_DRIVER_FLAG_MODULE) { + con_driver->flag & CON_DRIVER_FLAG_INIT) { vtconsole_deinit_device(con_driver); device_destroy(vtconsole_class, MKDEV(0, con_driver->node)); @@ -3594,12 +3597,11 @@ int do_unregister_con_driver(const struct consw *csw) con_driver->flag = 0; con_driver->first = 0; con_driver->last = 0; - retval = 0; - break; + return 0; } } -err: - return retval; + + return -ENODEV; } EXPORT_SYMBOL_GPL(do_unregister_con_driver); |