[PATCH 5/9] drm: sti: remove event lock while disabling vblank

[Benjamin Gaignard]

Stop use event_lock in vblank disable function.
This was creating a dead lock.

Signed-off-by: Benjamin Gaignard <benjamin.gaignard at linaro.org>
---
 drivers/gpu/drm/sti/sti_drm_crtc.c | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/drivers/gpu/drm/sti/sti_drm_crtc.c 
b/drivers/gpu/drm/sti/sti_drm_crtc.c
index e1e5550..f527997 100644
--- a/drivers/gpu/drm/sti/sti_drm_crtc.c
+++ b/drivers/gpu/drm/sti/sti_drm_crtc.c
@@ -365,7 +365,6 @@ void sti_drm_crtc_disable_vblank(struct drm_device *dev, 
int crtc)
        struct sti_drm_private *priv = dev->dev_private;
        struct sti_compositor *compo = priv->compo;
        struct notifier_block *vtg_vblank_nb = &compo->vtg_vblank_nb;
-       unsigned long flags;

        DRM_DEBUG_DRIVER("\n");

@@ -374,13 +373,10 @@ void sti_drm_crtc_disable_vblank(struct drm_device *dev, 
int crtc)
                DRM_DEBUG_DRIVER("Warning: cannot unregister VTG notifier\n");

        /* free the resources of the pending requests */
-       spin_lock_irqsave(&dev->event_lock, flags);
        if (compo->mixer[crtc]->pending_event) {
                drm_vblank_put(dev, crtc);
                compo->mixer[crtc]->pending_event = NULL;
        }
-       spin_unlock_irqrestore(&dev->event_lock, flags);
-
 }
 EXPORT_SYMBOL(sti_drm_crtc_disable_vblank);

-- 
1.9.1