From c881ae98b93c729d09c5ab2bc48ca6795fa08a05 Mon Sep 17 00:00:00 2001
From: Uwe Seimet <Uwe.Seimet@seimet.de>
Date: Thu, 24 Oct 2024 09:33:21 +0200
Subject: [PATCH] Fix Sonar issue

---
 cpp/devices/tape.cpp | 17 ++++++++---------
 1 file changed, 8 insertions(+), 9 deletions(-)

diff --git a/cpp/devices/tape.cpp b/cpp/devices/tape.cpp
index 99fc3d44..3342a0f9 100644
--- a/cpp/devices/tape.cpp
+++ b/cpp/devices/tape.cpp
@@ -407,8 +407,14 @@ void Tape::Space6()
     if (tar_mode) {
         switch (code) {
         case object_type::BLOCK:
-            position += count * GetBlockSize();
-            block_location += count;
+            if (block_location + count >= 0) {
+                position += count * GetBlockSize();
+                block_location += count;
+            }
+            else {
+                position = 0;
+                block_location = 0;
+            }
             break;
 
         case object_type::END_OF_DATA:
@@ -424,13 +430,6 @@ void Tape::Space6()
             throw scsi_exception(sense_key::illegal_request, asc::invalid_command_operation_code);
         }
 
-        if (position < 0) {
-            position = 0;
-        }
-        if (block_location < 0) {
-            block_location = 0;
-        }
-
         StatusPhase();
 
         return;