int rc;
unsigned long flags;
- if (!try_module_get(THIS_MODULE))
- return -EBUSY;
-
DBGINFO(("%s hdlcdev_open\n", dev->name));
- /* generic HDLC layer open processing */
- rc = hdlc_open(dev);
- if (rc)
- return rc;
-
/* arbitrate between network and tty opens */
spin_lock_irqsave(&info->netlock, flags);
if (info->port.count != 0 || info->netcount != 0) {
return rc;
}
+ /* generic HDLC layer open processing */
+ rc = hdlc_open(dev);
+ if (rc) {
+ shutdown(info);
+ spin_lock_irqsave(&info->netlock, flags);
+ info->netcount = 0;
+ spin_unlock_irqrestore(&info->netlock, flags);
+ return rc;
+ }
+
/* assert RTS and DTR, apply hardware settings */
info->signals |= SerialSignal_RTS | SerialSignal_DTR;
program_hw(info);
info->netcount=0;
spin_unlock_irqrestore(&info->netlock, flags);
- module_put(THIS_MODULE);
return 0;
}