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drm/amd/display: added NULL check at start of dc_validate_stream 

[ Upstream commit 26c56049cc4f1705b498df013949427692a4b0d5 ]

[Why]
prevent invalid memory access

[How]
check if dc and stream are NULL

Co-authored-by: winstang <winstang@amd.com>
Reviewed-by: Alvin Lee <alvin.lee2@amd.com>
Acked-by: Zaeem Mohamed <zaeem.mohamed@amd.com>
Signed-off-by: winstang <winstang@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
winstang 2024-05-27 08:51:19 -04:00 committed by Greg Kroah-Hartman
parent da696cbb47
commit 154a50bf42
1 changed files with 3 additions and 0 deletions
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3
drivers/gpu/drm/amd/display/dc/core/dc_resource.c
View File

@ -3927,6 +3927,9 @@ void resource_build_bit_depth_reduction_params(struct dc_stream_state *stream,
enum dc_status dc_validate_stream(struct dc *dc, struct dc_stream_state *stream)
{
if (dc == NULL || stream == NULL)
return DC_ERROR_UNEXPECTED;
struct dc_link *link = stream->link;
struct timing_generator *tg = dc->res_pool->timing_generators[0];
enum dc_status res = DC_OK;