From b82dc4f0a392d2b3a3e661b113b1c3e9c5666be0 Mon Sep 17 00:00:00 2001
From: Julian Barathieu <spectral@os-k.eu>
Date: Sat, 18 May 2019 19:57:57 +0200
Subject: [PATCH] scrolling bug fix

---
 kaleid/kernel/io/vga.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/kaleid/kernel/io/vga.c b/kaleid/kernel/io/vga.c
index 367f2b4..1c6a752 100644
--- a/kaleid/kernel/io/vga.c
+++ b/kaleid/kernel/io/vga.c
@@ -79,9 +79,11 @@ error_t bvgaflusher(Buffer_t *buf)
 
 void IoScrollDown(void)
 {
+    BLockBuf(BStdOut);
     if (bscroll > 0)
         bscroll--;
     bvgaflusher(BStdOut);
+    BUnlockBuf(BStdOut);
 }