[SG] Update drivers to use sg helpers

Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
diff --git a/drivers/ide/ide-probe.c b/drivers/ide/ide-probe.c
index d5146c5..ec55a17 100644
--- a/drivers/ide/ide-probe.c
+++ b/drivers/ide/ide-probe.c
@@ -1317,12 +1317,14 @@
 	if (!hwif->sg_max_nents)
 		hwif->sg_max_nents = PRD_ENTRIES;
 
-	hwif->sg_table = kzalloc(sizeof(struct scatterlist)*hwif->sg_max_nents,
+	hwif->sg_table = kmalloc(sizeof(struct scatterlist)*hwif->sg_max_nents,
 				 GFP_KERNEL);
 	if (!hwif->sg_table) {
 		printk(KERN_ERR "%s: unable to allocate SG table.\n", hwif->name);
 		goto out;
 	}
+
+	sg_init_table(hwif->sg_table, hwif->sg_max_nents);
 	
 	if (init_irq(hwif) == 0)
 		goto done;