_fini() Example

The following example demonstrates the _fini(9E) routine.

int
_fini(void)
{
        int error;
        error = mod_remove(&modlinkage);
        if (error != 0) {
                return (error);
        }
        /*
         * Cleanup resources allocated in _init()
         */
        ddi_soft_state_fini(&xxstatep);
        return (0);
}

Similarly, in _fini(), the driver should release any resources that were allocated in _init() and must remove itself from the system module list.

_fini() may be called when the driver is attached to hardware instances. In this case, mod_remove(9F) returns failure. Therefore, driver resources should not be released until mod_remove(9F) returns success.