usb: gadget: net2272: skip BAR1 on error handling paths in probe

net2272_rdk1_probe() skips "i == 1" (BAR1) during allocation of
resources. The patch does this on error hanling paths as well.

Found by Linux Driver Verification project (linuxtesting.org).
Signed-off-by: Evgeny Novikov <novikov@ispras.ru>
Signed-off-by: Felipe Balbi <balbi@kernel.org>

drivers/usb/gadget/udc/net2272.c

@@ -2370,6 +2370,8 @@ net2272_rdk1_probe(struct pci_dev *pdev, struct net2272 *dev)
 
  err:
 	while (--i >= 0) {
+		if (i == 1)
+			continue;	/* BAR1 unused */
 		iounmap(mem_mapped_addr[i]);
 		release_mem_region(pci_resource_start(pdev, i),
 			pci_resource_len(pdev, i));