hardware/mISDN/mISDNinfineon.c: bail out of loop on error

If setup_instance() fails we kfree() the card, and then use it in the next
loop iteration.  So lets bail out of the loop instead.

Coverity CID: 13357
Signed-off-by: Darren Jenkins <darrenrjenkins@gmail.com>
Cc: Karsten Keil <isdn@linux-pingi.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/isdn/hardware/mISDN/mISDNinfineon.c

@@ -1133,6 +1133,7 @@ inf_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 			if (err) {
 				kfree(sc);
 				release_card(card);
+				break;
 			} else
 				card->sc[i - 1] = sc;
 		}