UHCI: don't stop at an Iso error

Unlike other sorts of endpoint queues, Isochronous queues don't stop
when an error is encountered. This patch (as772) fixes the scanning
routine in uhci-hcd, to make it keep on going when it finds an Iso
error.

Signed-off-by: Alan Stern <[e-mail]>
Signed-off-by: Greg Kroah-Hartman <[e-mail]>

drivers/usb/host/uhci-q.c

···
 		}
 
 		uhci_giveback_urb(uhci, qh, urb, regs);
-		if (status < 0)
+		if (status < 0 && qh->type != USB_ENDPOINT_XFER_ISOC)
 			break;
 	}