From a7200614237a41d97afb13e4200029f3ec108d65 Mon Sep 17 00:00:00 2001
From: Andreas Kling <awesomekling@gmail.com>
Date: Fri, 9 Aug 2019 19:44:14 +0200
Subject: [PATCH] Kernel: Zero-length dbgputstr() should just return 0

---
 Kernel/Process.cpp | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/Kernel/Process.cpp b/Kernel/Process.cpp
index ee652301fb..3e98def741 100644
--- a/Kernel/Process.cpp
+++ b/Kernel/Process.cpp
@@ -2831,6 +2831,8 @@ int Process::sys$dbgputch(u8 ch)
 
 int Process::sys$dbgputstr(const u8* characters, int length)
 {
+    if (!length)
+        return 0;
     if (!validate_read(characters, length))
         return -EFAULT;
     for (int i = 0; i < length; ++i)