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drm/irq: BUG_ON() -> WARN_ON()

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Let's make things a bit easier to debug when things go bad (potentially
under console_lock).

Signed-off-by: Rob Clark <robdclark@gmail.com>
Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Rob Clark 2014-11-08 10:16:19 -05:00 committed by Dave Airlie
parent 881fdaa5e4
commit 7f907bf284
1 changed files with 2 additions and 1 deletions
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3
drivers/gpu/drm/drm_irq.c
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@ -1029,7 +1029,8 @@ void drm_vblank_put(struct drm_device *dev, int crtc)
{
struct drm_vblank_crtc *vblank = &dev->vblank[crtc];
BUG_ON(atomic_read(&vblank->refcount) == 0);
if (WARN_ON(atomic_read(&vblank->refcount) == 0))
return;
if (WARN_ON(crtc >= dev->num_crtcs))
return;