video: Convert vmalloc/memset to vzalloc

Signed-off-by: Joe Perches <joe@perches.com>
Acked-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
diff --git a/drivers/video/broadsheetfb.c b/drivers/video/broadsheetfb.c
index ebda687..377dde3 100644
--- a/drivers/video/broadsheetfb.c
+++ b/drivers/video/broadsheetfb.c
@@ -1101,12 +1101,10 @@
 
 	videomemorysize = roundup((dpyw*dpyh), PAGE_SIZE);
 
-	videomemory = vmalloc(videomemorysize);
+	videomemory = vzalloc(videomemorysize);
 	if (!videomemory)
 		goto err_fb_rel;
 
-	memset(videomemory, 0, videomemorysize);
-
 	info->screen_base = (char *)videomemory;
 	info->fbops = &broadsheetfb_ops;