lkml.org 
[lkml]   [2014]   [Nov]   [25]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH 3.16.y-ckt 056/254] drm/nouveau/bios: memset dcb struct to zero before parsing
Date
3.16.7-ckt2 -stable review patch.  If anyone has any objections, please let me know.

------------------

From: Ben Skeggs <bskeggs@redhat.com>

commit 595d373f1e9c9ce0fc946457fdb488e8a58972cd upstream.

Fixes type/mask calculation being based on uninitialised data for VGA
outputs.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Cc: Sven Joachim <svenjoac@gmx.de>
Signed-off-by: Luis Henriques <luis.henriques@canonical.com>
---
drivers/gpu/drm/nouveau/core/subdev/bios/dcb.c | 1 +
1 file changed, 1 insertion(+)

diff --git a/drivers/gpu/drm/nouveau/core/subdev/bios/dcb.c b/drivers/gpu/drm/nouveau/core/subdev/bios/dcb.c
index 88606bfaf847..bd8d348385b3 100644
--- a/drivers/gpu/drm/nouveau/core/subdev/bios/dcb.c
+++ b/drivers/gpu/drm/nouveau/core/subdev/bios/dcb.c
@@ -124,6 +124,7 @@ dcb_outp_parse(struct nouveau_bios *bios, u8 idx, u8 *ver, u8 *len,
struct dcb_output *outp)
{
u16 dcb = dcb_outp(bios, idx, ver, len);
+ memset(outp, 0x00, sizeof(*outp));
if (dcb) {
if (*ver >= 0x20) {
u32 conn = nv_ro32(bios, dcb + 0x00);
--
2.1.0


\
 
 \ /
  Last update: 2014-11-25 13:21    [W:0.886 / U:0.248 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site