[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/linit.c b/drivers/scsi/aacraid/linit.c
index 0d279c44..fdfc4be 100644
--- a/drivers/scsi/aacraid/linit.c
+++ b/drivers/scsi/aacraid/linit.c
@@ -1145,11 +1145,11 @@
 		goto out_disable_pdev;
 
 	shost->irq = pdev->irq;
-	shost->base = pci_resource_start(pdev, 0);
 	shost->unique_id = unique_id;
 	shost->max_cmd_len = 16;
 
 	aac = (struct aac_dev *)shost->hostdata;
+	aac->base_start = pci_resource_start(pdev, 0);
 	aac->scsi_host_ptr = shost;
 	aac->pdev = pdev;
 	aac->name = aac_driver_template.name;