1 files changed, 3 insertions, 2 deletions
diff --git a/arch/i386/kernel/semaphore.c b/arch/i386/kernel/semaphore.c
index c530eece0..febc592ae 100644
--- a/arch/i386/kernel/semaphore.c
+++ b/arch/i386/kernel/semaphore.c
@@ -150,8 +150,9 @@ int __down_interruptible(struct semaphore * sem)
 int __down_trylock(struct semaphore * sem)
 {
 	int sleepers;
+	unsigned long flags;
 
-	spin_lock_irq(&semaphore_lock);
+	spin_lock_irqsave(&semaphore_lock, flags);
 	sleepers = sem->sleepers + 1;
 	sem->sleepers = 0;
 
@@ -162,7 +163,7 @@ int __down_trylock(struct semaphore * sem)
 	if (!atomic_add_negative(sleepers, &sem->count))
 		wake_up(&sem->wait);
 
-	spin_unlock_irq(&semaphore_lock);
+	spin_unlock_irqrestore(&semaphore_lock, flags);
 	return 1;
 }