From 360a55ddd309e3a45b227a4a905ae7120dd16169 Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@nokia.com>
Date: Thu, 2 Apr 2009 14:21:12 +0300
Subject: [PATCH] DSS2: Verify that overlay paddr != 0

---
 drivers/video/omap2/dss/dispc.c   |    3 +++
 drivers/video/omap2/dss/overlay.c |    3 +++
 2 files changed, 6 insertions(+), 0 deletions(-)

diff --git a/drivers/video/omap2/dss/dispc.c b/drivers/video/omap2/dss/dispc.c
index 6cea545..2480a03 100644
--- a/drivers/video/omap2/dss/dispc.c
+++ b/drivers/video/omap2/dss/dispc.c
@@ -1301,6 +1301,9 @@ static int _dispc_setup_plane(enum omap_plane plane,
 	s32 row_inc;
 	s32 pix_inc;
 
+	if (paddr == 0)
+		return -EINVAL;
+
 	if (plane == OMAP_DSS_GFX) {
 		if (width != out_width || height != out_height)
 			return -EINVAL;
diff --git a/drivers/video/omap2/dss/overlay.c b/drivers/video/omap2/dss/overlay.c
index 968edbe..9209acf 100644
--- a/drivers/video/omap2/dss/overlay.c
+++ b/drivers/video/omap2/dss/overlay.c
@@ -331,6 +331,9 @@ static int dss_ovl_set_overlay_info(struct omap_overlay *ovl,
 	int r;
 	struct omap_overlay_info old_info;
 
+	if (info->paddr == 0)
+		return -EINVAL;
+
 	old_info = ovl->info;
 	ovl->info = *info;
 
-- 
1.5.6.5

