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-rw-r--r--present/present.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/present/present.c b/present/present.c
index 228d43a20..bfafa928e 100644
--- a/present/present.c
+++ b/present/present.c
@@ -374,6 +374,8 @@ present_event_notify(uint64_t event_id, uint64_t ust, uint64_t msc)
present_vblank_ptr vblank, tmp;
int s;
+ if (!event_id)
+ return;
DebugPresent(("\te %lld ust %lld msc %lld\n", event_id, ust, msc));
xorg_list_for_each_entry_safe(vblank, tmp, &present_exec_queue, event_queue) {
if (vblank->event_id == event_id) {
@@ -398,6 +400,7 @@ present_event_notify(uint64_t event_id, uint64_t ust, uint64_t msc)
DebugPresent(("\tun %lld\n", event_id));
screen_priv->unflip_event_id = 0;
present_flip_idle(screen);
+ return;
}
}
}