From 879223f38fef0c6cd3705bb10efa674c701bb792 Mon Sep 17 00:00:00 2001
From: Robin Mueller <robin.mueller.m@gmail.com>
Date: Thu, 24 Mar 2022 20:57:42 +0100
Subject: [PATCH] added nullptr check

---
 src/fsfw/container/SimpleRingBuffer.cpp | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/fsfw/container/SimpleRingBuffer.cpp b/src/fsfw/container/SimpleRingBuffer.cpp
index 7e9aac1af..437e72ea1 100644
--- a/src/fsfw/container/SimpleRingBuffer.cpp
+++ b/src/fsfw/container/SimpleRingBuffer.cpp
@@ -51,6 +51,9 @@ void SimpleRingBuffer::confirmBytesWritten(size_t amount) {
 }
 
 ReturnValue_t SimpleRingBuffer::writeData(const uint8_t* data, size_t amount) {
+  if(data == nullptr) {
+    return HasReturnvaluesIF::RETURN_FAILED;
+  }
   if(amount > getMaxSize()) {
 #if FSFW_VERBOSE_LEVEL >= 1
 #if FSFW_CPP_OSTREAM_ENABLED == 1