return -ENOMEM;
        /*  Probe the device to determine what device in the series it is. */
 
-       printk("comedi%d: " PCI9111_DRIVER_NAME " driver\n", dev->minor);
+       printk(KERN_ERR "comedi%d: " PCI9111_DRIVER_NAME " driver\n",
+                                                               dev->minor);
 
        for_each_pci_dev(pci_device) {
                if (pci_device->vendor == PCI_VENDOR_ID_ADLINK) {
                }
        }
 
-       printk("comedi%d: no supported board found! (req. bus/slot : %d/%d)\n",
-              dev->minor, it->options[0], it->options[1]);
+       printk(KERN_ERR
+               "comedi%d: no supported board found! (req. bus/slot : %d/%d)\n",
+                       dev->minor, it->options[0], it->options[1]);
        return -EIO;
 
 found:
 
-       printk("comedi%d: found %s (b:s:f=%d:%d:%d) , irq=%d\n",
+       printk(KERN_ERR "comedi%d: found %s (b:s:f=%d:%d:%d) , irq=%d\n",
               dev->minor,
               pci9111_boards[i].name,
               pci_device->bus->number,
        io_base = pci_resource_start(pci_device, 2);
        io_range = pci_resource_len(pci_device, 2);
 
-       printk("comedi%d: 6503 registers at address 0x%4lx [0x%4lx]\n",
+       printk(KERN_ERR "comedi%d: 6503 registers at address 0x%4lx [0x%4lx]\n",
               dev->minor, io_base, io_range);
 
        dev->iobase = io_base;
        if (pci_device->irq > 0) {
                if (request_irq(pci_device->irq, pci9111_interrupt,
                                IRQF_SHARED, PCI9111_DRIVER_NAME, dev) != 0) {
-                       printk("comedi%d: unable to allocate irq  %u\n",
-                              dev->minor, pci_device->irq);
+                       printk(KERN_ERR
+                               "comedi%d: unable to allocate irq  %u\n",
+                                       dev->minor, pci_device->irq);
                        return -EINVAL;
                }
        }