The comment says that the caller must hold the dev->event_lock
spinlock, so let's enforce this.
A quick audit over all driver shows that except for the one place in
i915 which motivated this all callers fullfill this requirement
already.
Cc: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx>
Cc: dri-devel@xxxxxxxxxxxxxxxxxxxxx
Signed-off-by: Daniel Vetter <daniel.vetter@xxxxxxxx>
---
drivers/gpu/drm/drm_irq.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/gpu/drm/drm_irq.c b/drivers/gpu/drm/drm_irq.c
index 80ff94ada75e..bf248eb9ffb2 100644
--- a/drivers/gpu/drm/drm_irq.c
+++ b/drivers/gpu/drm/drm_irq.c
@@ -907,6 +907,9 @@ void drm_send_vblank_event(struct drm_device *dev, int crtc,
{
struct timeval now;
unsigned int seq;
+
+ assert_spin_locked(&dev->event_lock);
+
if (crtc >= 0) {
seq = drm_vblank_count_and_time(dev, crtc, &now);
} else {
--
1.9.3
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