drm/amd/display: Fixed validation return wrong result.

Signed-off-by: Yongqiang Sun <yongqiang.sun@amd.com>
Reviewed-by: Tony Cheng <Tony.Cheng@amd.com>
Acked-by: Harry Wentland <Harry.Wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c

@@ -4748,7 +4748,7 @@ static int amdgpu_dm_atomic_check(struct drm_device *dev,
 		if (ret)
 			goto fail;
 
-		if (!dc_validate_global_state(dc, dm_state->context)) {
+		if (dc_validate_global_state(dc, dm_state->context) != DC_OK) {
 			ret = -EINVAL;
 			goto fail;
 		}

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

@@ -1716,7 +1716,7 @@ void dc_resource_state_construct(
 	dst_ctx->dis_clk = dc->res_pool->display_clock;
 }
 
-bool dc_validate_global_state(
+enum dc_status dc_validate_global_state(
 		struct dc *dc,
 		struct dc_state *new_ctx)
 {

drivers/gpu/drm/amd/display/dc/dc.h

@@ -654,7 +654,7 @@ bool dc_validate_stream(struct dc *dc, struct dc_stream_state *stream);
 
 bool dc_validate_plane(struct dc *dc, const struct dc_plane_state *plane_state);
 
-bool dc_validate_global_state(
+enum dc_status dc_validate_global_state(
 		struct dc *dc,
 		struct dc_state *new_ctx);