[SCSI] aacraid: Use resource_size_t for IO mem pointers and offsets

This also stops using the "legacy crap" in Scsi_Host (shost->base is an
unsigned long).

This affected 32-bit systems that have 64-bit resource sizes, causing the
IO address to be truncated.

Signed-off-by: Ben Collins <bcollins@ubuntu.com>
Acked-by: Achim Leubner <Achim_Leubner@pmc-sierra.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
diff --git a/drivers/scsi/aacraid/rkt.c b/drivers/scsi/aacraid/rkt.c
index be44de9..7d8013f 100644
--- a/drivers/scsi/aacraid/rkt.c
+++ b/drivers/scsi/aacraid/rkt.c
@@ -79,7 +79,7 @@
 		iounmap(dev->regs.rkt);
 		return 0;
 	}
-	dev->base = dev->regs.rkt = ioremap(dev->scsi_host_ptr->base, size);
+	dev->base = dev->regs.rkt = ioremap(dev->base_start, size);
 	if (dev->base == NULL)
 		return -1;
 	dev->IndexRegs = &dev->regs.rkt->IndexRegs;