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From 8a0914695a1a2a96308aa985c77515052b147864 Mon Sep 17 00:00:00 2001
From: Julian Parkin <jparkin@amd.com>
Date: Fri, 13 Apr 2018 13:23:02 -0400
Subject: [PATCH 4354/5725] drm/amd/display: Add assert that chroma pitch is
non zero
Signed-off-by: Julian Parkin <jparkin@amd.com>
Reviewed-by: Aric Cyr <Aric.Cyr@amd.com>
Reviewed-by: Tony Cheng <Tony.Cheng@amd.com>
Acked-by: Harry Wentland <harry.wentland@amd.com>
---
drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hubp.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hubp.c b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hubp.c
index 159bebc..0cbc83e 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hubp.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hubp.c
@@ -146,6 +146,9 @@ void hubp1_program_size_and_rotation(
* 444 or 420 luma
*/
if (format >= SURFACE_PIXEL_FORMAT_VIDEO_BEGIN) {
+ ASSERT(plane_size->video.chroma_pitch != 0);
+ /* Chroma pitch zero can cause system hang! */
+
pitch = plane_size->video.luma_pitch - 1;
meta_pitch = dcc->video.meta_pitch_l - 1;
pitch_c = plane_size->video.chroma_pitch - 1;
--
2.7.4
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