From: Greg Hackmann <ghackmann@google.com>
Date: Wed, 29 Aug 2012 16:58:45 +0000 (-0700)
Subject: gralloc: make sure rgb buffers have at least 1 line of padding
X-Git-Tag: cm-10.1-M1~202
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=3bad845cb63c86caa14fb2c43af4a1187834fec4;p=GitHub%2FLineageOS%2Fandroid_hardware_samsung_slsi_exynos5.git

gralloc: make sure rgb buffers have at least 1 line of padding

The display controller may read up to 1 line past the end of the image

Change-Id: Ibb6ed15d1c02d07fe955922249c71b7ce9bce0fc
Signed-off-by: Greg Hackmann <ghackmann@google.com>
---

diff --git a/gralloc/gralloc.cpp b/gralloc/gralloc.cpp
index 708f080..1c0180b 100644
--- a/gralloc/gralloc.cpp
+++ b/gralloc/gralloc.cpp
@@ -155,7 +155,7 @@ static int gralloc_alloc_rgb(int ionfd, int w, int h, int format, int usage,
             return -EINVAL;
     }
     bpr = ALIGN(w*bpp, 16);
-    vstride = ALIGN(h, 16);
+    vstride = ALIGN(h+1, 16);
     size = bpr * vstride;
     *stride = bpr / bpp;
     size = ALIGN(size, PAGE_SIZE);