[PATCH AUTOSEL 5.10 012/217] drm/amd/display: Do not silently accept DCC for multiplane formats.

[Sasha Levin]

From: Bas Nieuwenhuizen <b...@basnieuwenhuizen.nl>

[ Upstream commit b35ce7b364ec80b54f48a8fdf9fb74667774d2da ]

Silently accepting it could result in corruption.

Signed-off-by: Bas Nieuwenhuizen <b...@basnieuwenhuizen.nl>
Reviewed-by: Alex Deucher <alexander.deuc...@amd.com>
Reviewed-by: Nicholas Kazlauskas <nicholas.kazlaus...@amd.com>
Signed-off-by: Alex Deucher <alexander.deuc...@amd.com>
Signed-off-by: Sasha Levin <sas...@kernel.org>
---
 drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c 
b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
index 96907707fdd94..553a241dedf5d 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
@@ -3825,7 +3825,7 @@ fill_plane_dcc_attributes(struct amdgpu_device *adev,
                return 0;
 
        if (format >= SURFACE_PIXEL_FORMAT_VIDEO_BEGIN)
-               return 0;
+               return -EINVAL;
 
        if (!dc->cap_funcs.get_dcc_compression_cap)
                return -EINVAL;
-- 
2.27.0