sync: update new fence status with sync_fence_signal_pt
If a fence's pt is signaled before sync_fence_create is called, the fence
will never transition into the signaled state. This also address a tiny
race if a merged fence's pt after sync_fence_get_status checks it's status
and before fence->status is updated.
Change-Id: Ic8e292a323db26c6f04cb4757d920278b3125ff6
Signed-off-by: Erik Gilling <konkers@android.com>
Signed-off-by: Michael Bohan <mbohan@codeaurora.org>
diff --git a/drivers/base/sync.c b/drivers/base/sync.c
index 812424c..63903d7 100644
--- a/drivers/base/sync.c
+++ b/drivers/base/sync.c
@@ -297,6 +297,12 @@
list_add(&pt->pt_list, &fence->pt_list_head);
sync_pt_activate(pt);
+ /*
+ * signal the fence in case pt was activated before
+ * sync_pt_activate(pt) was called
+ */
+ sync_fence_signal_pt(pt);
+
return fence;
}
EXPORT_SYMBOL(sync_fence_create);
@@ -458,7 +464,13 @@
if (err < 0)
goto err;
- fence->status = sync_fence_get_status(fence);
+ /*
+ * signal the fence in case one of it's pts were activated before
+ * they were activated
+ */
+ sync_fence_signal_pt(list_first_entry(&fence->pt_list_head,
+ struct sync_pt,
+ pt_list));
return fence;
err: