synclink_gt: use pci_zalloc_consistent

Remove the now unnecessary memset too.
Signed-off-by: NJoe Perches <joe@perches.com>
Acked-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Jiri Slaby <jslaby@suse.cz>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

drivers/tty/synclink_gt.c

@@ -3383,12 +3383,11 @@ static int alloc_desc(struct slgt_info *info)
 	unsigned int pbufs;
 
 	/* allocate memory to hold descriptor lists */
-	info->bufs = pci_alloc_consistent(info->pdev, DESC_LIST_SIZE, &info->bufs_dma_addr);
+	info->bufs = pci_zalloc_consistent(info->pdev, DESC_LIST_SIZE,
+					   &info->bufs_dma_addr);
 	if (info->bufs == NULL)
 		return -ENOMEM;
 
-	memset(info->bufs, 0, DESC_LIST_SIZE);
-
 	info->rbufs = (struct slgt_desc*)info->bufs;
 	info->tbufs = ((struct slgt_desc*)info->bufs) + info->rbuf_count;