From df97c582d7ab9bbb6734a82f5ca123405866c4e0 Mon Sep 17 00:00:00 2001
From: Robin Mueller <muellerr@irs.uni-stuttgart.de>
Date: Wed, 23 Mar 2022 16:48:17 +0100
Subject: [PATCH] possibly important fix for ring buffer write

---
 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 bcf3cf20d..0c95fe407 100644
--- a/src/fsfw/container/SimpleRingBuffer.cpp
+++ b/src/fsfw/container/SimpleRingBuffer.cpp
@@ -48,6 +48,9 @@ void SimpleRingBuffer::confirmBytesWritten(size_t amount) {
 }
 
 ReturnValue_t SimpleRingBuffer::writeData(const uint8_t* data, size_t amount) {
+  if(amount > maxSize()) {
+    return HasReturnvaluesIF::RETURN_FAILED;
+  }
   if (availableWriteSpace() >= amount or overwriteOld) {
     size_t amountTillWrap = writeTillWrap();
     if (amountTillWrap >= amount) {