From 8ca8241547e856eb6fa478ac61de97c0bd720213 Mon Sep 17 00:00:00 2001
From: joyfullservice <joyfullservice@users.noreply.github.com>
Date: Wed, 25 Sep 2024 15:07:13 -0500
Subject: [PATCH] Resolve null pointer exception

Adding a separator using `ESPUI.separator("Separator name");` triggers an exception when the code tries to access the property of an invalid object.
---
 src/ESPUI.cpp | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/src/ESPUI.cpp b/src/ESPUI.cpp
index 211fb74..1db326f 100644
--- a/src/ESPUI.cpp
+++ b/src/ESPUI.cpp
@@ -531,7 +531,14 @@ uint16_t ESPUIClass::addControl(
 
     NotifyClients(ClientUpdateType_t::RebuildNeeded);
 
-    return control->id;
+    if (control == nullptr)
+    {
+        return 0;
+    }
+    else
+    {
+        return control->id;
+    }
 }
 
 bool ESPUIClass::removeControl(uint16_t id, bool force_rebuild_ui)