From d715c9a2cbd4b5dbf72bec82b033698db3c6eca5 Mon Sep 17 00:00:00 2001 From: Martin Tsai Date: Sun, 23 Jan 2022 13:19:58 -0500 Subject: drm/amd/display: add protection in link encoder matching logic [Why] Link encoders are created based on its engine ID. The position of a link encoder in an array could be null since it didn't be allocated. Current matching logic didn't consider this situation and could get null encoder. [How] To add null encoder check to make the matching logic can go to next to get a valid one. Tested-by: Daniel Wheeler Reviewed-by: Aric Cyr Acked-by: Rodrigo Siqueira Signed-off-by: Martin Tsai Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/display/dc/inc/dc_link_dp.h | 1 - 1 file changed, 1 deletion(-) (limited to 'drivers/gpu/drm/amd/display/dc/inc/dc_link_dp.h') diff --git a/drivers/gpu/drm/amd/display/dc/inc/dc_link_dp.h b/drivers/gpu/drm/amd/display/dc/inc/dc_link_dp.h index b18c8198f66d..b7c5c42d67ed 100644 --- a/drivers/gpu/drm/amd/display/dc/inc/dc_link_dp.h +++ b/drivers/gpu/drm/amd/display/dc/inc/dc_link_dp.h @@ -171,7 +171,6 @@ uint8_t dc_dp_initialize_scrambling_data_symbols( enum dc_status dp_set_fec_ready(struct dc_link *link, const struct link_resource *link_res, bool ready); void dp_set_fec_enable(struct dc_link *link, bool enable); -struct link_encoder *dp_get_link_enc(struct dc_link *link); bool dp_set_dsc_enable(struct pipe_ctx *pipe_ctx, bool enable); bool dp_set_dsc_pps_sdp(struct pipe_ctx *pipe_ctx, bool enable, bool immediate_update); void dp_set_dsc_on_stream(struct pipe_ctx *pipe_ctx, bool enable); -- cgit v1.2.3-59-g8ed1b