params.vertical_total_mid_frame_num = adjust.v_total_mid_frame_num;
for (i = 0; i < num_pipes; i++) {
- if ((pipe_ctx[i]->stream_res.tg != NULL) && pipe_ctx[i]->stream_res.tg->funcs) {
+ /* dc_state_destruct() might null the stream resources, so fetch tg
+ * here first to avoid a race condition. The lifetime of the pointee
+ * itself (the timing_generator object) is not a problem here.
+ */
+ struct timing_generator *tg = pipe_ctx[i]->stream_res.tg;
+
+ if ((tg != NULL) && tg->funcs) {
struct dc_crtc_timing *timing = &pipe_ctx[i]->stream->timing;
struct dc *dc = pipe_ctx[i]->stream->ctx->dc;
num_frames = 2 * (frame_rate % 60);
}
}
- if (pipe_ctx[i]->stream_res.tg->funcs->set_drr)
- pipe_ctx[i]->stream_res.tg->funcs->set_drr(
- pipe_ctx[i]->stream_res.tg, ¶ms);
+ if (tg->funcs->set_drr)
+ tg->funcs->set_drr(tg, ¶ms);
if (adjust.v_total_max != 0 && adjust.v_total_min != 0)
- if (pipe_ctx[i]->stream_res.tg->funcs->set_static_screen_control)
- pipe_ctx[i]->stream_res.tg->funcs->set_static_screen_control(
- pipe_ctx[i]->stream_res.tg,
- event_triggers, num_frames);
+ if (tg->funcs->set_static_screen_control)
+ tg->funcs->set_static_screen_control(
+ tg, event_triggers, num_frames);
}
}
}