isdn: avm: call pci_disable_device() if pci_probe() failed

Driver should call pci_disable_device() if it returns from pci_probe()
with error.
Signed-off-by: Kulikov Vasiliy <segooon@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/isdn/hardware/avm/c4.c

@@ -1273,6 +1273,7 @@ static int __devinit c4_probe(struct pci_dev *dev,
 	if (retval != 0) {
 		printk(KERN_ERR "c4: no AVM-C%d at i/o %#x, irq %d detected, mem %#x\n",
 		       nr, param.port, param.irq, param.membase);
+		pci_disable_device(dev);
 		return -ENODEV;
 	}
 	return 0;