From cce37a6f10e0c7b06b5ead1223e92c85d88242c0 Mon Sep 17 00:00:00 2001
From: Behdad Esfahbod <behdad@behdad.org>
Date: Fri, 21 Jan 2022 07:31:21 -0700
Subject: [PATCH] [gpos] Fix conditional

---
 src/hb-ot-layout-gpos-table.hh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/hb-ot-layout-gpos-table.hh b/src/hb-ot-layout-gpos-table.hh
index 7268567e2..be341fb44 100644
--- a/src/hb-ot-layout-gpos-table.hh
+++ b/src/hb-ot-layout-gpos-table.hh
@@ -1584,7 +1584,7 @@ struct PairPosFormat2
 	/* Add Devices. */
 	mask |= mask << 4;
 
-	if (valueFormat1 & !mask)
+	if (valueFormat1 & ~mask)
 	  goto bail;
 
 	/* Is simple kern. Apply value on an empty position slot,