From: Thierry Reding <tred...@nvidia.com>
The drm_send_vblank_event() function treats negative CRTC indices as
meaning that a driver doesn't have proper VBLANK handling. This is the
only place where DRM needs negative CRTC indices, so in order to enable
subsequent cleanup, remove this special case and replace it by the more
obvious check for whether or not VBLANK support was initialized.
Signed-off-by: Thierry Reding <treding at nvidia.com>
---
drivers/gpu/drm/drm_irq.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/drm_irq.c b/drivers/gpu/drm/drm_irq.c
index ee14324522ce..5c666c780fe9 100644
--- a/drivers/gpu/drm/drm_irq.c
+++ b/drivers/gpu/drm/drm_irq.c
@@ -971,7 +971,7 @@ void drm_send_vblank_event(struct drm_device *dev, int crtc,
struct timeval now;
unsigned int seq;
- if (crtc >= 0) {
+ if (dev->num_crtcs > 0) {
seq = drm_vblank_count_and_time(dev, crtc, &now);
} else {
seq = 0;
--
2.4.5
