From c8e7759699232424544eb39fbdedc89358ecbb06 Mon Sep 17 00:00:00 2001
From: youshugen <youshugen@h-partners.com>
Date: Fri, 18 Aug 2023 10:56:24 +0800
Subject: [PATCH] fix: Divide by zero bug fix

Signed-off-by: youshugen <youshugen@h-partners.com>
---
 service/native/src/gradual_animator.cpp | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/service/native/src/gradual_animator.cpp b/service/native/src/gradual_animator.cpp
index 918eb7f..916426e 100644
--- a/service/native/src/gradual_animator.cpp
+++ b/service/native/src/gradual_animator.cpp
@@ -58,6 +58,9 @@ void GradualAnimator::StartAnimation(uint32_t from, uint32_t to, uint32_t durati
         totalSteps_ = 1;
     }
     int32_t changeBrightness = static_cast<int32_t>(toBrightness_) - static_cast<int32_t>(fromBrightness_);
+    if (changeBrightness == 0) {
+        return;
+    }
     stride_ = changeBrightness / static_cast<int32_t>(totalSteps_);
     if (abs(stride_) < STRIDE_ABSOLUTE_MIN) {
         stride_ = (changeBrightness / abs(changeBrightness)) * STRIDE_ABSOLUTE_MIN;
-- 
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