diff options
| author | winstang <winstang@amd.com> | 2024-05-27 15:51:19 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2024-09-08 08:54:48 +0300 |
| commit | 154a50bf4221a6a6ccf88d565b8184da7c40a2dd (patch) | |
| tree | d1796618c18a935883765c58354c84281d636753 /drivers/gpu | |
| parent | da696cbb47941c40b01cc10ea5504dc5a4ebac6e (diff) | |
| download | linux-154a50bf4221a6a6ccf88d565b8184da7c40a2dd.tar.xz | |
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>
Diffstat (limited to 'drivers/gpu')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/core/dc_resource.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_resource.c b/drivers/gpu/drm/amd/display/dc/core/dc_resource.c index 84923c5400d3..733e445331ea 100644 --- a/drivers/gpu/drm/amd/display/dc/core/dc_resource.c +++ b/drivers/gpu/drm/amd/display/dc/core/dc_resource.c @@ -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; |