USB: pxa27x_udc.c: use resource_size()

Use resource_size().

Signed-off-by: H Hartley Sweeten <[e-mail]>
Cc: David Brownell <[e-mail]>
Acked-by: Robert Jarzmik <[e-mail]>
Signed-off-by: Greg Kroah-Hartman <[e-mail]>

drivers/usb/gadget/pxa27x_udc.c

···
 	}
 
 	retval = -ENOMEM;
-	udc->regs = ioremap(regs->start, regs->end - regs->start + 1);
+	udc->regs = ioremap(regs->start, resource_size(regs));
 	if (!udc->regs) {
 		dev_err(&pdev->dev, "Unable to map UDC I/O memory\n");
 		goto err_map;