From 8a0914695a1a2a96308aa985c77515052b147864 Mon Sep 17 00:00:00 2001 From: Julian Parkin 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 Reviewed-by: Aric Cyr Reviewed-by: Tony Cheng Acked-by: Harry Wentland --- 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