From 9a0762ad2a3773ccf919631203aa24cd311109a0 Mon Sep 17 00:00:00 2001
From: Me No Dev <me-no-dev@users.noreply.github.com>
Date: Wed, 17 Mar 2021 18:46:55 +0200
Subject: [PATCH] [BLE Client] Fix Deadlock when calling writeValue after
 registerForNotify

Fixes: https://github.com/espressif/arduino-esp32/issues/4952
---
 libraries/BLE/src/BLERemoteCharacteristic.cpp | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/libraries/BLE/src/BLERemoteCharacteristic.cpp b/libraries/BLE/src/BLERemoteCharacteristic.cpp
index 86a4655d..e1ee6405 100644
--- a/libraries/BLE/src/BLERemoteCharacteristic.cpp
+++ b/libraries/BLE/src/BLERemoteCharacteristic.cpp
@@ -246,6 +246,10 @@ void BLERemoteCharacteristic::gattClientEventHandler(esp_gattc_cb_event_t event,
 			}
 			break;
 
+		case ESP_GATTC_DISCONNECT_EVT:
+			m_semaphoreWriteCharEvt.give(1);
+			break;
+			
 		default:
 			break;
 	} // End switch