On Mit, 2011-04-27 at 16:10 +1000, christopher.halse.rogers at canonical.com wrote: > From: Christopher James Halse Rogers <christopher.halse.rogers at > canonical.com> > > 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 at > canonical.com> > --- > 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);
Reviewed-by: Michel D?nzer <michel at daenzer.net> -- Earthling Michel D?nzer | http://www.vmware.com Libre software enthusiast | Debian, X and DRI developer
