From 9e4be5e49449b6eb65fb607459ff178de05ae840 Mon Sep 17 00:00:00 2001
From: Kyle Kearney <kyle@cypress.com>
Date: Mon, 13 Jul 2020 12:56:35 -0700
Subject: [PATCH] Call HAL free functions from C++ destructors

Add missing calls to HAL free to the following drivers
- AnalogIn
- QSPI
- SerialBase
---
 drivers/AnalogIn.h            | 4 +++-
 drivers/QSPI.h                | 3 +++
 drivers/source/SerialBase.cpp | 4 ++++
 3 files changed, 10 insertions(+), 1 deletion(-)

diff --git a/drivers/AnalogIn.h b/drivers/AnalogIn.h
index 38c1fc130d..dd5d067a2f 100644
--- a/drivers/AnalogIn.h
+++ b/drivers/AnalogIn.h
@@ -151,7 +151,9 @@ public:
 
     virtual ~AnalogIn()
     {
-        // Do nothing
+        lock();
+        analogin_free(&_adc);
+        unlock();
     }
 
 protected:
diff --git a/drivers/QSPI.h b/drivers/QSPI.h
index 1ef8df2396..f98fb45ed5 100644
--- a/drivers/QSPI.h
+++ b/drivers/QSPI.h
@@ -117,6 +117,9 @@ public:
 
     virtual ~QSPI()
     {
+        lock();
+        qspi_free(&_qspi);
+        unlock();
     }
 
     /** Configure the data transmission format
diff --git a/drivers/source/SerialBase.cpp b/drivers/source/SerialBase.cpp
index b335f695fb..40bf7d0b61 100644
--- a/drivers/source/SerialBase.cpp
+++ b/drivers/source/SerialBase.cpp
@@ -287,6 +287,10 @@ SerialBase::~SerialBase()
     for (int irq = 0; irq < IrqCnt; irq++) {
         attach(nullptr, (IrqType)irq);
     }
+
+    if (_rx_enabled || _tx_enabled) {
+        serial_free(&_serial);
+    }
 }
 
 #if DEVICE_SERIAL_FC