drm/nouveau/core: allow non-maskable events

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

1 files changed, 8 insertions, 4 deletions

diff --git a/drivers/gpu/drm/nouveau/core/core/event.c b/drivers/gpu/drm/nouveau/core/core/event.c
index 6d01e0f0fc8a..7eb81c1b6fab 100644
--- a/drivers/gpu/drm/nouveau/core/core/event.c
+++ b/drivers/gpu/drm/nouveau/core/core/event.c
@@ -27,8 +27,10 @@ static void
 nouveau_event_put_locked(struct nouveau_event *event, int index,
                          struct nouveau_eventh *handler)
 {
-        if (!--event->index[index].refs)
-                event->disable(event, index);
+        if (!--event->index[index].refs) {
+                if (event->disable)
+                        event->disable(event, index);
+        }
         list_del(&handler->head);
 }
 
@@ -53,8 +55,10 @@ nouveau_event_get(struct nouveau_event *event, int index,
         spin_lock_irqsave(&event->lock, flags);
         if (index < event->index_nr) {
                 list_add(&handler->head, &event->index[index].list);
-                if (!event->index[index].refs++)
-                        event->enable(event, index);
+                if (!event->index[index].refs++) {
+                        if (event->enable)
+                                event->enable(event, index);
+                }
         }
         spin_unlock_irqrestore(&event->lock, flags);
 }