From 06e3b1e445c1a99fb6284beb95ae92c48fb5bade Mon Sep 17 00:00:00 2001
From: Dean Lee <deanlee3@gmail.com>
Date: Mon, 4 Jan 2021 17:18:10 +0800
Subject: [PATCH] fix thread safety issue in camera focusing (#19576)

---
 selfdrive/camerad/cameras/camera_qcom.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/selfdrive/camerad/cameras/camera_qcom.h b/selfdrive/camerad/cameras/camera_qcom.h
index 0290ec1585..293d4741cf 100644
--- a/selfdrive/camerad/cameras/camera_qcom.h
+++ b/selfdrive/camerad/cameras/camera_qcom.h
@@ -98,7 +98,7 @@ typedef struct CameraState {
   int16_t focus[NUM_FOCUS];
   uint8_t confidence[NUM_FOCUS];
 
-  float focus_err;
+  std::atomic<float> focus_err;
 
   uint16_t cur_step_pos;
   uint16_t cur_lens_pos;