From 7a15c1cbc5e4cd58bc6d97943307b8df3fc20d69 Mon Sep 17 00:00:00 2001
From: Augustin Cavalier <waddlesplash@gmail.com>
Date: Sat, 6 Apr 2019 13:55:45 -0400
Subject: [PATCH] kernel: Add interrupts checks for switch_lock functions.

---
 src/system/kernel/locks/lock.cpp | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/src/system/kernel/locks/lock.cpp b/src/system/kernel/locks/lock.cpp
index 3ab0e49932..ab62a1ac49 100644
--- a/src/system/kernel/locks/lock.cpp
+++ b/src/system/kernel/locks/lock.cpp
@@ -676,6 +676,13 @@ mutex_lock_threads_locked(mutex* lock, InterruptsSpinLocker* locker)
 status_t
 mutex_switch_lock(mutex* from, mutex* to)
 {
+#if KDEBUG
+	if (!gKernelStartup && !are_interrupts_enabled()) {
+		panic("mutex_switch_lock(): called with interrupts disabled "
+			"for locks %p, %p", from, to);
+	}
+#endif
+
 	InterruptsSpinLocker locker(to->lock);
 
 	mutex_unlock(from);
@@ -687,6 +694,13 @@ mutex_switch_lock(mutex* from, mutex* to)
 status_t
 mutex_switch_from_read_lock(rw_lock* from, mutex* to)
 {
+#if KDEBUG
+	if (!gKernelStartup && !are_interrupts_enabled()) {
+		panic("mutex_switch_from_read_lock(): called with interrupts disabled "
+			"for locks %p, %p", from, to);
+	}
+#endif
+
 	InterruptsSpinLocker locker(to->lock);
 
 #if KDEBUG_RW_LOCK_DEBUG