std::async has nodiscard in 20.04, i believe that function won't return until the async completes

5 years ago · cb3ade51ef
parent 99029cda01
commit cb3ade51ef
1 changed files with 1 additions and 1 deletions
--- a/selfdrive/ui/qt/window.cc
+++ b/selfdrive/ui/qt/window.cc
@ -107,7 +107,7 @@ void GLWindow::timerUpdate(){
  }
 #endif
-  std::async(std::launch::async,
+  auto f = std::async(std::launch::async,
             [brightness]{
               std::ofstream brightness_control("/sys/class/backlight/panel0-backlight/brightness");
               if (brightness_control.is_open()){