From: Matthias Kruk <m@m10k.eu>
Date: Sat, 21 Mar 2020 17:12:25 +0000 (+0900)
Subject: kernel/arch: Fix task_lock() and task_unlock() functions
X-Git-Url: https://git.corax.cc/?a=commitdiff_plain;h=49c9fe75946ce451156891401070f3cfe4b30c58;p=corax

kernel/arch: Fix task_lock() and task_unlock() functions
---

diff --git a/kernel/arch/task.S b/kernel/arch/task.S
index f05f64b..fe62d54 100644
--- a/kernel/arch/task.S
+++ b/kernel/arch/task.S
@@ -489,15 +489,19 @@ task_move_stack:
 4:	ret
 
 task_lock:
-	addl	$OFFSET_TASK_LOCK, 4(%esp)
+	movl	4(%esp), %eax
+	addl 	$OFFSET_TASK_LOCK, %eax
+	pushl	%eax
 	call	spinlock_lock
-	subl	$OFFSET_TASK_LOCK, 4(%esp)
+	addl	$4, %esp
 	ret
 
 task_unlock:
-	addl	$OFFSET_TASK_LOCK, 4(%esp)
+	movl	4(%esp), %eax
+	addl	$OFFSET_TASK_LOCK, %eax
+	pushl	%eax
 	call	spinlock_unlock
-	subl	$OFFSET_TASK_LOCK, 4(%esp)
+	addl	$4, %esp
 	ret
 
 	/*