diff --git a/drivers/char/drm/i915_irq.c b/drivers/char/drm/i915_irq.c
index 78c1ae28f17cd65f1441609359aea708f7149394..b92062a239f1a8c0d92e60405af0eeccdfa59a85 100644
--- a/drivers/char/drm/i915_irq.c
+++ b/drivers/char/drm/i915_irq.c
@@ -582,7 +582,7 @@ void i915_driver_irq_postinstall(drm_device_t * dev)
 {
 	drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private;
 
-	dev_priv->swaps_lock = SPIN_LOCK_UNLOCKED;
+	spin_lock_init(&dev_priv->swaps_lock);
 	INIT_LIST_HEAD(&dev_priv->vbl_swaps.head);
 	dev_priv->swaps_pending = 0;