From 9c51d9dfcd990ec4bc1707f8c17ee0fd1059d8f0 Mon Sep 17 00:00:00 2001
From: Andreas Kling <awesomekling@gmail.com>
Date: Wed, 16 Jan 2019 01:58:11 +0100
Subject: [PATCH] Catch anyone trying to use a DoubleBuffer with interrupts
 disabled.

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

diff --git a/Kernel/DoubleBuffer.cpp b/Kernel/DoubleBuffer.cpp
index 7311c7c10e..8e038e2a52 100644
--- a/Kernel/DoubleBuffer.cpp
+++ b/Kernel/DoubleBuffer.cpp
@@ -19,6 +19,7 @@ void DoubleBuffer::flip()
 
 ssize_t DoubleBuffer::write(const byte* data, size_t size)
 {
+    ASSERT_INTERRUPTS_ENABLED();
     LOCKER(m_lock);
     m_write_buffer->append(data, size);
     compute_emptiness();
@@ -27,6 +28,7 @@ ssize_t DoubleBuffer::write(const byte* data, size_t size)
 
 ssize_t DoubleBuffer::read(byte* data, size_t size)
 {
+    ASSERT_INTERRUPTS_ENABLED();
     LOCKER(m_lock);
     if (m_read_buffer_index >= m_read_buffer->size() && !m_write_buffer->is_empty())
         flip();