From: Christopher James Halse Rogers <christopher.halse.rogers@xxxxxxxxxxxxx> After emitting all the waiting vblank events no-one should hold a vblank reference. Emit a warning if this is not the case. Signed-off-by: Christopher James Halse Rogers <christopher.halse.rogers@xxxxxxxxxxxxx> --- drivers/gpu/drm/drm_irq.c | 1 + 1 files changed, 1 insertions(+), 0 deletions(-) diff --git a/drivers/gpu/drm/drm_irq.c b/drivers/gpu/drm/drm_irq.c index a1f12cb..72407fa 100644 --- a/drivers/gpu/drm/drm_irq.c +++ b/drivers/gpu/drm/drm_irq.c @@ -960,6 +960,7 @@ void drm_vblank_off(struct drm_device *dev, int crtc) e->event.sequence); } + WARN_ON(atomic_read(&dev->vblank_refcount[crtc]) != 0); spin_unlock_irqrestore(&dev->vbl_lock, irqflags); } EXPORT_SYMBOL(drm_vblank_off); -- 1.7.4.1 _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/dri-devel
