From acec9b9d35c86158f49d612fb79833936bfe6f9d Mon Sep 17 00:00:00 2001
From: qianyicheng <qianyicheng@espressif.com>
Date: Fri, 21 Jul 2017 19:06:44 +0800
Subject: [PATCH] bugfix(ledc): fix integer divided by zero in function
 ledc_set_fade_with_time

---
 components/driver/ledc.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/components/driver/ledc.c b/components/driver/ledc.c
index 9cea7b5ec7..559aad5faa 100644
--- a/components/driver/ledc.c
+++ b/components/driver/ledc.c
@@ -514,6 +514,9 @@ esp_err_t ledc_set_fade_with_time(ledc_mode_t speed_mode, ledc_channel_t channel
         return ESP_OK;
     }
     int total_cycles = max_fade_time_ms * freq / 1000;
+    if (total_cycles == 0) {
+        return ledc_set_duty(speed_mode, channel, target_duty);
+    }
     int scale, cycle_num;
     if (total_cycles > duty_delta) {
         scale = 1;