From dda6dde3df83ae2ed54fe5dc2485efa8ff6209ec Mon Sep 17 00:00:00 2001
From: Aaron Giles <aaron@aarongiles.com>
Date: Sun, 11 Jul 2021 08:45:33 -0700
Subject: [PATCH] poly: Early out of waits if no outstanding work.

---
 src/devices/video/poly.h | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/devices/video/poly.h b/src/devices/video/poly.h
index d61e1bd6137..378e433b269 100644
--- a/src/devices/video/poly.h
+++ b/src/devices/video/poly.h
@@ -622,6 +622,10 @@ void *poly_manager<BaseType, ObjectType, MaxParams, Flags>::work_item_callback(v
 template<typename BaseType, class ObjectType, int MaxParams, u8 Flags>
 void poly_manager<BaseType, ObjectType, MaxParams, Flags>::wait(const char *debug_reason)
 {
+	// early out if no units outstanding
+	if (m_unit.count() == 0)
+		return;
+
 #if TRACK_POLY_WAITS
 	int items = osd_work_queue_items(m_queue);
 	osd_ticks_t time = get_profile_ticks();