On 09.11.2014 00:16, Rob Clark wrote:
Let's make things a bit easier to debug when things go bad (potentially
under console_lock).
Signed-off-by: Rob Clark <robdclark@xxxxxxxxx>
---
drivers/gpu/drm/drm_irq.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/drm_irq.c b/drivers/gpu/drm/drm_irq.c
index 5ef03c2..c4edea9 100644
--- a/drivers/gpu/drm/drm_irq.c
+++ b/drivers/gpu/drm/drm_irq.c
@@ -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;
Reviewed-by: Michel Dänzer <michel.daenzer@xxxxxxx>
--
Earthling Michel Dänzer | http://www.amd.com
Libre software enthusiast | Mesa and X developer
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