From 60891b4d0125699cecec1a667b2629c9e8ad72e1 Mon Sep 17 00:00:00 2001
From: steve <sjtrny@gmail.com>
Date: Sat, 28 Aug 2021 15:31:05 +1000
Subject: [PATCH] Add safety clause to reading modes

---
 esphome/components/ltr390/ltr390.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/esphome/components/ltr390/ltr390.cpp b/esphome/components/ltr390/ltr390.cpp
index cb1fdf3e8c..4388b0c41e 100644
--- a/esphome/components/ltr390/ltr390.cpp
+++ b/esphome/components/ltr390/ltr390.cpp
@@ -155,7 +155,7 @@ void LTR390Component::setup() {
 void LTR390Component::dump_config() { LOG_I2C_DEVICE(this); }
 
 void LTR390Component::update() {
-  if (!this->reading_) {
+  if (!this->reading_ && mode_funcs_.size() > 0) {
     this->reading_ = true;
     this->read_mode_(0);
   }