From 82312ba7c376e6fbc08345afaa2cb5b8286152da Mon Sep 17 00:00:00 2001
From: ismail <ismailsahillioglu@gmail.com>
Date: Tue, 15 Jul 2025 12:17:46 +0300
Subject: [PATCH] Add NULL handling for the `gpio_num` pointer.

Fixes #1050.
---
 src/relay_chn.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/relay_chn.c b/src/relay_chn.c
index 4e719ba..6fdc016 100644
--- a/src/relay_chn.c
+++ b/src/relay_chn.c
@@ -298,6 +298,8 @@ static esp_err_t relay_chn_create_event_loop()
 
 esp_err_t relay_chn_create(const gpio_num_t* gpio_map, uint8_t gpio_count)
 {
+    ESP_RETURN_ON_FALSE(gpio_map, ESP_ERR_INVALID_ARG, TAG, "gpio_map cannot be NULL");
+
     // Check if the device's GPIOs are enough for the number of channels
     if (RELAY_CHN_COUNT > (GPIO_PIN_COUNT / 2)) {
         ESP_LOGE(TAG, "Not enough GPIOs for the number of channels!");