Merge branch 'spi/merge' of git://git.secretlab.ca/git/linux-2.6

[pandora-kernel.git] / drivers / gpu / drm / drm_irq.c

diff --git a/drivers/gpu/drm/drm_irq.c b/drivers/gpu/drm/drm_irq.c
index 0054e95..3dadfa2 100644 (file)
--- a/drivers/gpu/drm/drm_irq.c
+++ b/drivers/gpu/drm/drm_irq.c
@@ -1250,7 +1250,7 @@ void drm_handle_vblank_events(struct drm_device *dev, int crtc)
  * Drivers should call this routine in their vblank interrupt handlers to
  * update the vblank counter and send any signals that may be pending.
  */
-void drm_handle_vblank(struct drm_device *dev, int crtc)
+bool drm_handle_vblank(struct drm_device *dev, int crtc)
 {
        u32 vblcount;
        s64 diff_ns;
@@ -1258,7 +1258,7 @@ void drm_handle_vblank(struct drm_device *dev, int crtc)
        unsigned long irqflags;
 
        if (!dev->num_crtcs)
-               return;
+               return false;
 
        /* Need timestamp lock to prevent concurrent execution with
         * vblank enable/disable, as this would cause inconsistent
@@ -1269,7 +1269,7 @@ void drm_handle_vblank(struct drm_device *dev, int crtc)
        /* Vblank irq handling disabled. Nothing to do. */
        if (!dev->vblank_enabled[crtc]) {
                spin_unlock_irqrestore(&dev->vblank_time_lock, irqflags);
-               return;
+               return false;
        }
 
        /* Fetch corresponding timestamp for this vblank interval from
@@ -1311,5 +1311,6 @@ void drm_handle_vblank(struct drm_device *dev, int crtc)
        drm_handle_vblank_events(dev, crtc);
 
        spin_unlock_irqrestore(&dev->vblank_time_lock, irqflags);
+       return true;
 }
 EXPORT_SYMBOL(drm_handle_vblank);