From 00cbc1ab87281dd4f5cca9c95494482a3d03a665 Mon Sep 17 00:00:00 2001
From: Olivier Martin <olivier@labapart.com>
Date: Tue, 27 Feb 2024 11:28:49 +0100
Subject: [PATCH] common: Set pointer to NULL after freeing them

---
 common/gattlib_callback_discovered_device.c   | 1 +
 common/gattlib_callback_notification_device.c | 2 ++
 common/gattlib_common.c                       | 1 +
 3 files changed, 4 insertions(+)

diff --git a/common/gattlib_callback_discovered_device.c b/common/gattlib_callback_discovered_device.c
index b32f20ea..4a13020d 100644
--- a/common/gattlib_callback_discovered_device.c
+++ b/common/gattlib_callback_discovered_device.c
@@ -62,6 +62,7 @@ static gpointer _gattlib_discovered_device_thread(gpointer data) {
 	free(args->mac_address);
 	if (args->name != NULL) {
 		free(args->name);
+		args->name = NULL;
 	}
 	free(args);
 	return NULL;
diff --git a/common/gattlib_callback_notification_device.c b/common/gattlib_callback_notification_device.c
index 771e5076..89daf6cf 100644
--- a/common/gattlib_callback_notification_device.c
+++ b/common/gattlib_callback_notification_device.c
@@ -61,9 +61,11 @@ void gattlib_notification_device_thread(gpointer data, gpointer user_data) {
 
 	if (args->uuid != NULL) {
 		free(args->uuid);
+		args->uuid = NULL;
 	}
 	if (args->data != NULL) {
 		free(args->data);
+		args->data = NULL;
 	}
 }
 
diff --git a/common/gattlib_common.c b/common/gattlib_common.c
index b0bfcfe0..eed1a775 100644
--- a/common/gattlib_common.c
+++ b/common/gattlib_common.c
@@ -151,6 +151,7 @@ void gattlib_handler_free(struct gattlib_handler* handler) {
 		Py_DECREF(args->args);
 		handler->python_args = NULL;
 		free(handler->python_args);
+		handler->python_args = NULL;
 	}
 
 	if (handler->thread_pool != NULL) {