[SG] Update drivers to use sg helpers

Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
diff --git a/drivers/scsi/pcmcia/sym53c500_cs.c b/drivers/scsi/pcmcia/sym53c500_cs.c
index 190e2a7..969b938 100644
--- a/drivers/scsi/pcmcia/sym53c500_cs.c
+++ b/drivers/scsi/pcmcia/sym53c500_cs.c
@@ -443,8 +443,7 @@
 
 			scsi_for_each_sg(curSC, sg, scsi_sg_count(curSC), i) {
 				SYM53C500_pio_write(fast_pio, port_base,
-						    page_address(sg->page) + sg->offset,
-						    sg->length);
+				    sg_virt(sg), sg->length);
 			}
 			REG0(port_base);
 		}
@@ -463,8 +462,7 @@
 
 			scsi_for_each_sg(curSC, sg, scsi_sg_count(curSC), i) {
 				SYM53C500_pio_read(fast_pio, port_base,
-						   page_address(sg->page) + sg->offset,
-						   sg->length);
+					sg_virt(sg), sg->length);
 			}
 			REG0(port_base);
 		}