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>
diff --git a/drivers/isdn/hardware/avm/t1pci.c b/drivers/isdn/hardware/avm/t1pci.c
index 5a3f830..a79eb5a 100644
--- a/drivers/isdn/hardware/avm/t1pci.c
+++ b/drivers/isdn/hardware/avm/t1pci.c
@@ -210,6 +210,7 @@
 	if (retval != 0) {
 		printk(KERN_ERR "t1pci: no AVM-T1-PCI at i/o %#x, irq %d detected, mem %#x\n",
 		       param.port, param.irq, param.membase);
+		pci_disable_device(dev);
 		return -ENODEV;
 	}
 	return 0;