Avoid unlocking never-locked objects at the end of functions

aa73f5f8 · gsamain · Xavier Thompson · 5dd7ced5 · aa73f5f8
Commit aa73f5f8 authored Jun 04, 2019 by gsamain Committed by Xavier Thompson Aug 17, 2020
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Cython/Compiler/Nodes.py Cython/Compiler/Nodes.py +2 -1

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--- a/Cython/Compiler/Nodes.py
+++ b/Cython/Compiler/Nodes.py
@@ -2241,7 +2241,8 @@ class FuncDefNode(StatNode, BlockNode):
                code.put_var_xdecref(entry, have_gil=gil_owned['success'])

        for node in lenv.autolocked_nodes:
-            code.putln("Cy_UNLOCK(%s);" % node.result())
+            if node.entry.needs_rlock or node.entry.needs_wlock:
+                code.putln("Cy_UNLOCK(%s);" % node.result())

        # Decref any increfed args
        for entry in lenv.arg_entries: