From: winstang <[email protected]> [ Upstream commit 26c56049cc4f1705b498df013949427692a4b0d5 ]
[Why] prevent invalid memory access [How] check if dc and stream are NULL Co-authored-by: winstang <[email protected]> Reviewed-by: Alvin Lee <[email protected]> Acked-by: Zaeem Mohamed <[email protected]> Signed-off-by: winstang <[email protected]> Tested-by: Daniel Wheeler <[email protected]> Signed-off-by: Alex Deucher <[email protected]> Signed-off-by: Sasha Levin <[email protected]> --- drivers/gpu/drm/amd/display/dc/core/dc_resource.c | 3 +++ 1 file changed, 3 insertions(+) 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 83898e46bcadf..29400db42bb2d 100644 --- a/drivers/gpu/drm/amd/display/dc/core/dc_resource.c +++ b/drivers/gpu/drm/amd/display/dc/core/dc_resource.c @@ -3629,6 +3629,9 @@ 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; -- 2.43.0
