drm: Spinlock initializer cleanup

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Dave Airlie <airlied@linux.ie>
diff --git a/drivers/char/drm/i915_irq.c b/drivers/char/drm/i915_irq.c
index 78c1ae2..b92062a 100644
--- a/drivers/char/drm/i915_irq.c
+++ b/drivers/char/drm/i915_irq.c
@@ -582,7 +582,7 @@
 {
 	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;