Commit 63e6a77c authored by Ma Ke's avatar Ma Ke Committed by Alex Deucher
Browse files

drm/amd/display: Fix null check for pipe_ctx->plane_state in resource_build_scaling_params 



Null pointer dereference issue could occur when pipe_ctx->plane_state
is null. The fix adds a check to ensure 'pipe_ctx->plane_state' is not
null before accessing. This prevents a null pointer dereference.

Found by code review.

Fixes: 3be5262e ("drm/amd/display: Rename more dc_surface stuff to plane_state")
Reviewed-by: default avatarAlex Hung <alex.hung@amd.com>
Signed-off-by: default avatarMa Ke <make24@iscas.ac.cn>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent c0a01660

drivers/gpu/drm/amd/display/dc/core/dc_resource.c

+2 −1
Original line number Diff line number Diff line
@@ -1472,7 +1472,8 @@ bool resource_build_scaling_params(struct pipe_ctx *pipe_ctx) 
	DC_LOGGER_INIT(pipe_ctx->stream->ctx->logger);



	/* Invalid input */

	if (!plane_state->dst_rect.width ||

	if (!plane_state ||

			!plane_state->dst_rect.width ||

			!plane_state->dst_rect.height ||

			!plane_state->src_rect.width ||

			!plane_state->src_rect.height) {